Carboxylic Acids
MDCAT • Chemistry
287 MCQs — Click "Reveal" to see the correct answer
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1
Identify strongest conjugate base among the following:
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2Organic acids (Carboxylic acids) are considered as
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3
The strength of the organic acids and chloro substituted acids is measured by pK1 scale such that smaller value of pKa corresponds to:
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4
The stronger acid among the following is:
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5Which of the following carboxylie acid derivative is least reactive?
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6
2CH3COOH + xCa Ca(OCOCH3)2 +H₂O. Calculate value of x.
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7
By-product produced during hydrolysis of alkane nitrile in basic medium is:
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8Ethyl butyrate is an ester formed by combination of and butyrie acid
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9Identify reversible reaction among the following
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10
Which of the following is not an example of electrophilic substitution reaction:
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11
The work of concentrated H2SO4 in esterification process is as
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12
For producing a carboxylic acid derivative. The reaction of nucleophile to carboxyl group is always followed by displacement of:
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13
Which pair can be used as a reactant for the preparation of acetyl chloride:
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14
Carboxylic acids react with active metals (Na, K, Ca and Mg) to form their salt and
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15During the formation of an acid amide from ethanoic acid, what actually happens
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16
Which gas release during acid halide formation with the help of thionyl chloride and carboxylic acid
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17
Which sequence of groups replace OH of carboxylic acid to halides, esters and amides respectively
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18
Which of the following represent acid amide:
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19Ammonium acetate converts to acetamide by
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20Benzyl alcohol and acetic acid give a compound with fragrance
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21The addition of ethyl alcohol in protonated acetic acid is
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22Which reaction can be used in artificial juices formation with carboxylic acids
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23Which group of R of carboxylic acids is active for reaction with alkali metal carbonates?
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24Potassium carbonate is decomposed by acetic acid and release a gas, the nature of gas is
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25
Predict "A" among the following:
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26Propanoic acid is produced from on acidic hydrolysis
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27Alkane nitriles can be prepared by treating alkyl halide with
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28
If ethanoic acid is to be prepared by hydrolysis of alkane nitriles, which of the following can be the reagent to be hydrolyzed:
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29Alkane nitriles on boiling with which type of acid gives organic acids
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30A compound is oxidized to X, by further oxidation of X if resulting compound is butyric acid, starting compound can be:
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31By oxidation of which compound carboxylic acid cannot be obtained.
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32Organic acid which cannot obtained by hydrolysis of fats
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33Which one is carboxylic acid
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34Which of the following is unsaturated aliphatic organic acid
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35Glacial acetic acid at low temperature is a
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36An acid with unpleasant smell
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37Acetic acid exists as dimer in benzene due to
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38Which of the following is an unsaturated carboxylic acid
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39
General formula for carboxylic acid is
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40
Methyl magnesium bromide upon reaction with CO2 produces
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41Solubility of first four members of aliphatic carboxylie acid in water is due to?
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42Boiling point of which of the following carboxylie acid will be greater?
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43Which of the following is an acid catalyzed reaction?
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44
Alkanoic acids upon treatment with PCI5, SOCl₂ gives
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45Which of the following are used as artificial flavors?
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46Carboxylic acids are than mineral acids
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47In non-polar solvents carboxylic acids exist as
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48Hydrolysis of which compound yields carboxylic acid on boiling with mineral acids?
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49Which of the following is dicarboxylic acid?
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50UHS MDCAT 2008
Acetic acid is called _ acid.
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51UHS MDCAT 2009
The protonation of carboxylic acid is:
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52UHS MDCAT 2010
Which of the following compounds, in the form of aqueous solution, on reaction with sodium carbonate will produce carbon dioxide gas?
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53UHS MDCAT 2010
Hydrolysis of cyano group by an aqueous acid result into:
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54UHS MDCAT 2011
CH3CN + HCl → A + B (in the presence of water)In the reaction given above, A and B are:
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55UHS MDCAT 2012
When ethanol is warmed with ethanoic acid in the presence of a strong acid catalyst, an ester ethyl ethanoate is formed. CH3CH2OH + CH3CO2H → CH3CO2CH2CH3 During this reaction:
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56UHS MDCAT 2013
The name of the following compound is:
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57UHS MDCAT 2014
Which one of the following is Glutamic Acid?
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58UHS MDCAT 2014
Organic compounds ‘X’ and ‘Y’ both can react with Na-Metal to evolve hydrogen gas. If ‘X’ and ‘Y’ react with each other form an organic compound ‘Z’ which gives a fruity smell. What type of compound ‘X’, ‘Y’ and ‘Z’ are?
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59UHS MDCAT 2015
An organic acid ‘z’ reacts separately with sodium bicarbonate, sodium hydroxide and sodium carbonate. Which one of the following represent the structure of ‘z’?
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60UHS MDCAT 2015
‘Ka’ values of a few organic acids are given. The order of acid strength is:
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61UHS MDCAT 2016
Which one of the following reactions of carboxylic acid is reversible?
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62UHS MDCAT 2017
Select the correct acidic strength order of chloro substituted acids:
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63UHS MDCAT 2017 (Reconduct)
During esterification, the bond from alcohol that breaks in between:
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64UHS MDCAT 2017 (Reconduct)
Final product of hydrolysis of nitrile yield:
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65UHS MDCAT 2018
The dilute solution of _ is called vinegar.
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66UHS MDCAT 2023
Which of the functional group are present in ethyl acetate?
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67UHS MDCAT 2023
Mr. Khan mix acetic acid with thionyl chloride. Which product is obtained?
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68UHS MDCAT 2023
If carboxylic acid and ketone groups C=0 are present in a chain then final name will be given as
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69PMDC MDCAT 2025
Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces:
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70PMDC MDCAT 2025
FISCHER ESTERIFICATION is which type of reaction:
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71
Carboxylic acids yield _ on reaction with alcohols in the presence of conc. H2SO4.
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72
Orange flavor is given by
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73Balochistan MDCAT 2024
On heating acetic acid in the presence of P2O5, dehydration occurs with the formation of
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74Balochistan MDCAT 2024
Amino acids, which are not synthesized by the human body are:
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75KPK MDCAT 2024
Acetic acid can be prepared by the hydrolysis of
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76
The pKa of n-propyl amine is:
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77FMDC MDCAT 2024
Which type of reaction will be occur, when an alcohol reacts with a carboxylic acid?
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78FMDC MDCAT 2024
Which product will be formed finally on the reduction of acetic acid with LiAIH4?
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79FMDC MDCAT 2024
The IUPAC name of Malonic acid CH2(COOH)2 is
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80FMDC MDCAT 2024
The oxidation of methanal results in the formation of
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81FMDC MDCAT 2024
When CO2 reacts with propyl magnesium chloride followed by acid hydrolysis, the product formed is
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82UHS MDCAT 2024
Which one of the following is not an amino acid
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83UHS MDCAT 2024
When carboxylic acid is heated with alcohol in the presence of sulphuric acid, one of the following is formed.
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84UHS MDCAT 2024
Common name of 2-hydroxy propanoic acid is
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85Sindh MDCAT 2024
Formic acid is naturally found in:
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86Sindh MDCAT 2024
The total number of alpha amino acids is:
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87Sindh MDCAT 2024
The carboxylic acid is stronger than:
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88Sindh MDCAT 2024
It is used as a preservative and antibacterial agent in livestock feed:
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89KPK MDCAT 2022
Which of the following statements is false about the acid-strength of acetic acid?
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90UHS MDCAT 2022
When carboxylic acids and dicarboxylic acids have similar molecular weights, how do their melting points compare?
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91UHS MDCAT 2022
Which among the following have least pH?
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92Sindh MDCAT 2022
Hexanoic acid is IUPAC name:
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93Sindh MDCAT 2022
HOOC-COOH has IUPAC name:
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94Balochistan MDCAT 2023
The solubility of carboxylic acid in water gradually decreases with:
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95Balochistan MDCAT 2023
Acetic acid is a weaker acid than sulfuric acid because of which of the following reasons?
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96
In the IUPAC system Carboxylic acid is also called _
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97
Which of the following organic acid does NOT have a COOH group?
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98Sindh MDCAT 2023 (Retake) Sindh MCAT NTS 2016 DUHS and JSMU
Common name of Octadecanoic acid is:
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99
Number of carbon atoms in valeric acid is:
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100
Mr. Khan mixes acetic acid with thionyl chloride. Which product is obtained?
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101Balochistan MDCAT 2022
Acetic acid is a weaker acid than sulphuric acid because of which of the following reasons?
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102UHS MDCAT 2022
If carboxylic acid and ketone groups C=O are present in a chain, then final name will be given as:
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103FMDC MDCAT 2024 (Reconduct) FMDC MDCAT 2023
The two functional groups present in all amino acids are:
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104FMDC MDCAT 2023
Reactivity of carboxyl group is due to presence of:
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105FMDC MDCAT 2023
Thionyl chloride reacts with acetic acid resulting in transformation of Carboxylic group to:
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106FMDC MDCAT 2023
When carboxylic acids are heated with alcohol in the presence of concentrated H2SO4, the conversion of functional group takes place from:
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107Sindh MDCAT 2023
Which of the following is an amino acid?
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108Sindh MDCAT 2023
What Is the IUPAC name of α, β-dimethyl valeric acid?
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109Sindh MDCAT 2023
What is the IUPAC name of stearic acid?
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110
Which class of organic compounds is used for artificial flavorings in jams?
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111
Which of the following is not derivative of carboxylic acid?
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112
Which of the following derivatives cannot be prepared directly from carboxylic acid?
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113
Which of the following is the weakest acid?
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114
Acetic acid is:
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115
The irritation caused by red ants bite is due to:
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116
What are the product when SOCl2 is reacted with acetic acid?
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117
Saponification is alkaline hydrolysis of esters. What is the important product that is generated from ester's acyl group?
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118
What is the product when acid anhydride is reacted with amine?
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119
What is the product when Acetic Acid is reacted with Sodium Hydroxide?
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120
Carboxylic acid is often derived with the use of Tollen's reagent from the oxidation of what organic compound?
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121
By treating CO2 with Grignards's reagent, followed by acid hydrolysis which compound is obtained?
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122ETEA MDCAT 2014
The characteristic reaction of carboxylic acid is:
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123ETEA MDCAT 2014 ETEA MDCAT 2012
Acetic acid reacts with methyl alcohol in the presence of acid catalyst to give:
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124ETEA MDCAT 2014
Which of the following compounds will react with methyl magnesium Iodide followed by acid hydrolysis to give ethyl alcohol?
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125ETEA MDCAT 2014
Ethanol (CH3CH2OH) and dimethyl ether (CH3OCH3) are the best considered as:
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126ETEA MDCAT 2014
Fatty acids are:
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127ETEA MDCAT 2013
Which of the following misnamed?
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128
The basic hydrolysis of ethyl acetate produces?
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129
Salts of carboxylic acids can be converted into corresponding carboxylic acid by treating with:
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130
Which one of the following carboxylic acid has an unpleasant smell?
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131
Carboxylic acids are obtained from fats and oils by:
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132ETEA MDCAT 2017
What is the name of the carboxylic acid given below?HOOC(CH2)3COOH
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133ETEA MDCAT 2019
Why ethanoic acid is a stronger acid in the liquid ammonia than in water
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134ETEA MDCAT 2018
Whenever nitrile group is hydrolysed (𝑑𝑖𝑙 𝐻𝐶𝑙) with water it always produces:
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135
Regarding reactivity of the compounds having carbonyl group. The most reactive compound out of the following is:
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136ETEA MDCAT 2018
The compound which you think is not the derivative of acetic acid is:
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137ETEA MDCAT 2018 ETEA MDCAT 2013
Read the statement and choose the option correctly.
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138UHS MDCAT 2017 (Reconduct)
Which of the following is the functional group for carboxylic acids?
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139UHS MDCAT 2017 (Reconduct)
Identify the product X in the following reaction:CH3COOH + PCl5 → X + POCl3 + HCl
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140UHS MDCAT 2016
Select the best option, indicating the name of the structure given below
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141
Which one of the following reaction of carboxylic acid is reversible?
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142UHS MDCAT 2016
CH3COOH + CH3CH2OH ⇌ CH3COOC2H5 + H2O Which one of the following will act as a catalyst in the above reaction?
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143UHS MDCAT 2016
What is the name of the given structural formula?
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144UHS MDCAT 2013
Methyl cyanides, on boiling with mineral acids or alkalis yield:
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145UHS MDCAT 2013
The formation of ester from acetic acid in presence of acid and ethanol is a:
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146UHS MDCAT 2013
The relative strength of carboxylic acid, water, ethanol, and phenol has the following order of increasing acid strength:
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147UHS MDCAT 2014
Acetamide is formed by dehydration of
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148UHS MDCAT 2014
Ethyl butyrate and butyl butanoate are esters with the flavor of:
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149UHS MDCAT 2011
Consider the following reaction:CH3COOH + Mg (metal) → ?What product will form?
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150UHS MDCAT 2011
The products of the reaction given below are:CH3COOH + PCl5 → ?
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151UHS MDCAT 2011
Relative acidic strength of alcohol, phenol, water and carboxylic acid is:
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152UHS MDCAT 2012
The skeletal formula of dipeptide formed between aspartic acid and phenylalanine is given below: How many functional groups are present in its formula?
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153UHS MDCAT 2012
Organic compound containing both amino and carboxyl group is known as:
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154UHS MDCAT 2012
In the below reaction the nucleophile which attacks the carbon atom of acid is:
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155UHS MDCAT 2015
Carboxylic acids are rather hard to reduce, which powerful reducing agent can be used to convert them to the corresponding primary alcohol:
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156
An organic acid 'z' reacts separately with sodium bicarbonate, sodium hydroxide and sodium carbonate. Which one of the following represent the structure of 'z'?
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157
Which one is a weak acid?
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158
Which one of the following is NOT a fatty acid?
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159
Which of the following evolves carbon dioxide when reacted with sodium bicarbonate?
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160
Carboxylic acids are produced by the oxidation of _?
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161
Which of the following formulae is the correct general formula of aliphatic carboxylic acid?
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162
Which of the following compounds evolve Carbon Dioxide on reacting with sodium bicarbonate?
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163
Which of the following derivative of carboxylic acid is used as a flavoring agent?
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164
Freezing point of acetic acid;
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165PMDC MDCAT 2020
Hydrolysis of acyl chloride results in the formation of:
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166
Which functional group does amino acid contain?
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167
Formic acid is obtained from_?
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168
Which of the following is a weaker acid?
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169
Which of the following is not a derivative of 'Carboxylic acid'?
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170
The reactions of carboxylic acids which involve H atom removal of OH group form as major products in all reactions:
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171
Which of the following acid is used a coagulant for latex in the rubber industry ?
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172
Which of the following groups is present in carboxylic acids?
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173
Reduction of ethanoic acid with LiAIH4 produces?
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174
2-hydroxy propanoic acid is also called _ ?
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175
In IUPAC nomenclature, Carboxylic acids are named _ ?
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176
Which of the following does not contain COOH group?
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177
Acetic acid is also named as _.
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178
Which of the following group is present in carboxylic acids?
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179
Acetic acid is soluble in;
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180
Flavour of Orange is due to the presence of _ ester.
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181
The boiling point of carboxylic acids are high due to _.
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182
Butyric acid is derived from the word 'butyrum' which means _.
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183
How is acetic acid commercially synthesized?
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184
Which of the following is the correct general formula for aliphatic carboxylic acid?
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185
Acetic acid can be used in _ ?
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186
Which of the following derivatives of carboxylic acid is used as flavouring agent?
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187
Reagents like K2Cr207and H2S04 lead to _?
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188
Acetic acid is used in making _.
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189
Which of the following is correct about IUPAC naming of carboxylic acid?
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190
What is the boiling point of "acetic acid"?
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191
Which of the following acid is used as a "coagulant" for latex in the rubber industry?
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192
During the reduction of carboxylic acids into alkanes in the presence of HI/P, the COOH group is reduced to?
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193
Glacial acetic acid is _.
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194
Which of the following cannot be prepared directly from acetic acid?
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195
On reacting with metals, carboxylic acid produces which of the following products?
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196
The reaction of carboxylic acids with base is a _ reaction.
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197
Which of the following flavour is due to Amyl acetate ?
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198
Propanoic acid is produced when _.
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199
The freezing point of acetic acid is _.
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200
Carboxylic acids are produced by the oxidation of _.
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201
What is the hybridization of carbon in a -COOH group?
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202
Which of the following produce Carbon Dioxide with sodium bicarbonate?
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203
Which of the following is an example of 'Tricarboxylic acids' ?
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204
On hydrolysis with dilute HCI, ethanenitrile gives acetic acid through?
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205
Which one of the following is a common name of Butanoic acid?
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206
Oxidative cleavage of alkenes takes place in the presence of _ ?
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207
Which one of the following is the formula of stearic acid?
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208
What is the IUPAC name of: CICH2CH2COOH?
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209
The compounds having -COOH group are called as _ ?
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210
In a carboxylic acid dimer, how many H-bonds are present?
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211
Polyvinyl acetate is a polymer of _?
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212
Which of the following acid solution is used for the seasoning of food?
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213
In aromatic carboxylic acids -COOH group is named as _ ?
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214
When ethyl alcohol is oxidized with potassium dichromate, which product is formed?
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215
Which of the carboxylic acid in diluted form is used as vinegar?
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216
When two carboxylic acids are strongly heated in the presence of P2O5, which product is formed?
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217
Which of the following catalysts is used for the preparation of acidic anhydrides?
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218
Glycine has the IUPAC name:
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219
Carboxylic acids have higher boiling points than their corresponding alkanes due to:
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220
Hexanedioic acid is known as:
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221
Esterification is a _ process.
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222
Oxalic acid is also called:
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223
Carboxylic acid is used in the formation of:
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224
Which one of these is not a monocarboxylic acid?
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225
The reaction of carboxylic acids with bases produces:
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226
Grignard reagent when reacts with CO₂, it forms:
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227
Which one of these has a fruity smell?
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228
Carboxylic acids turn?
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229PMC Practice Test 4 2021
Which of the following is succinic acid?
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230PMC Practice Test 4 2021
Which of the following has an amide functional group?
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231PMC Practice Test 4 2021
Which of the following properties belong to acetic acid?
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232PMC Practice Test 4 2021
Alcohol oxidation gives carboxylic acid through:
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233PMC Practice Test 4 2021
Which of the following method is used to prepare acetic acid?
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234UHS MDCAT 2018
Which product is formed by the reaction of carboxylic acid with alcohol?
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235UHS MDCAT 2018
Which one of the following compounds act as a catalyst when alcohols react with carboxylic acids.
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236UHS MDCAT 2018
Which one will act as a strong acid?
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237UHS MDCAT 2018
Which of the following catalysts is used in the below reaction?
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238
Carboxylic acids are formed by the hydrolysis of _.
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239
Carboxylic acids form dimers due to _.
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240PMC Practice Test 3 2021
Which of the following acid solutions is used for the seasoning of food?
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241PMC Practice Test 2 2021
Which of the following is an example of aromatic carboxylic acid?
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242PMC Practice Test 2 2021
Which of the following carboxylic acids is used in medicine as a local irritant?
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243PMC Practice Test 2 2021
In the case of HOCH2CH2CH2COOH, from where is numbering started?
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244PMC Practice Test 1 2021 PMC Practice Test 1 2022
Which of the following is most soluble in water?
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245PMC Practice Test 1 2021 PMC Practice Test 1 2022
Carboxylic acids do not give the characteristics reaction of >C=O group because of:
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246UHS MDCAT 2019
Maleic and Fumaric acid, both have chemical C4H4O4. The structure of these acids is shown below. What type of isomers are these?
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247UHS MDCAT 2019
Which of the following reagent is required for preparation of acyl chloride (CH3COCl) from ethanoic aicd?
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248UHS MDCAT 2019
Nitriles (RCN), on hydrolysis, in the presence of a mineral acid yield:
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249
High molecular mass organic compounds, upon hydrolysis yield amino acids are called _.
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250
Carboxylic acid reduction to alcohol can be achieved by using?
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251
In IUPAC nomenclature, Carboxylic acids are named as_?
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252
Which of the following is correct general formula of aliphatic carboxylic acid ?
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253PMC Practice Test 3 2021
Which type of carboxylic acid is produced from the hydrolysis of nitriles?
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254
Which of the following is an example of Monocarboxylic acid?
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255
The compounds having -COOH group are called as_?
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256
The formula of esters is:
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257
On reacting with which of the following carboxylic acids produce CO2?
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258
Solubility of carboxylic acids:
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259
Acetic acid derived from the word 'Acetum' which means_?
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260
Which of the following is not the physical property of acetic acid?
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261
Ease of esterification of the following alcohols CH3CH2OH(I) ,
(CH3)2CHOH(II) and
(CH3)3COH(III) with HCOOH is:
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262
The reaction CHCH + H2O + 3(O) shows the formation of _.
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263FMDC MDCAT 2018
HCOOH is the structure of:
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264NUMS MDCAT 2019
What is common when carboxylic acid is reacted with base or with alcohol?
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265NUMS MDCAT 2019
What happens if we react a carboxylic acid with an acyl chloride?
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266NUMS MDCAT 2019
Benzyl acetate gives us which flavour?
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267
Reagent used to reduce a carboxylic acid to an alkane is:
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268NUMS MDCAT 2020
Acetic anhydride is a product of acetic acid, as a result of the following reaction:
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269NUMS MDCAT 2023
Hydrolysis of Nitriles produces:
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270
An ester is prepared by:
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271
Strongest acid among the following is:
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272PMDC MDCAT 2020
Which of the following is the strongest acid?
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273Sindh MCAT NTS 2011 DUHS and JSMU
An ester is prepared by the reaction of:
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274
Which of the following cannot be used to convert butanoic acid to butanoyl chloride?
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275
Which of the following carboxylic acids will be the most acidic?
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276Sindh MCAT NTS 2010 DUHS and JSMU Sindh MCAT NTS 2009
What is the product of both fermentation reactions and fractional distillation?
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277UHS MDCAT 2019
Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?
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278
Which of the following reagents will reduce butanoic acid to butanol?
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279
By treating CO2 with Grignard's reagent, the following compound is obtained;
-
280
Sodium Benzoate on reacting with soda lime forms:
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281NUMS MDCAT 2019
Which of these in an aqueous solution of equal concentration has the lowest pH?
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282
Acetaldehyde oxidation will lead to formation of _.
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283
Cyanohydrins, when reacted with mineral acid, produce _.
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284PMC Practice Test 1 2021 PMC Practice Test 1 2022
How are carboxylic acids formed from alcohol?
-
285
Which of the following is more soluble in water?
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286
Which of the following is not a derivative of carboxylic acid?
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287UHS MDCAT 2017 (Reconduct)
Catalytic oxidation of alkanes results in the formation of _: