Chemistry of Hydrocarbons

What is the IUPAC name of given compound? CH₃-CH=CH-CH₂-C≡CH

The saturated alicyclic hydrocarbons have the general formula:

In Friedel Craft acylation, an acyl group is introduced in benzene ring in the presence of catalyst:

Which of the following is an example of a substituent group which releases electrons to the benzene ring?

When benzene reacts with isopropyl chloride in the presence of AlCl₃ as Lewis acid (Friedel Craft Acylation), the product formed is isopropyl benzene. What is this reaction called?

What hybridization is present on carbon atoms in Ethyne C₂H₂?

Among the following hydrocarbons, which one has acidic hydrogen?

Identify the electrophile called as acylium ion:

Which one of the following is not a meta directing group?

Which of the following will not give substitution reaction?

IUPAC name of the following compound CH₃-(CH₃)₂-C(CH₃)₃ is:

Benzene also undergoes electrophilic substitution when treated with fuming sulphuric acid for several hours. The electrophile in this reaction is?

The electrophile which is considered to be the active agent in the nitration of benzene is:

Propyne reacts with aqueous sulphuric acid in the presence of HgSO₄ to form:

Consider the chlorination of CH₄, the attack of chlorine free radical on CH₄ to form methyl free radical occurs in?

Alkyl benzene is formed when benzene is treated with an alkyl halide in the presence of anhydrous AlCl₃. Identify the type of reaction.

Which of the following acts as electrophile during nitration of benzene?

When CH₃ is attached with the benzene ring, it makes the ring:

Electrophile in sulphonation of benzene is:

An olefin 'X' on ozonolysis gives CH₃CH₂COCH₃ and CH₃COCH₃. The IUPAC name of X is:

A gas decolorizes alkaline KMnO₄ solution but does not give any PPT with ammonical AgNO₃:

Select meta directing group of the following:

The correct order of the reactivity of hydrocarbon given below is:

Which catalyst is used in oxidation of benzene ring?

Order of reactivity of halogen toward alkane is:

In the reaction sequence: H₃C-CH₂ + Br₂ → A, then A + alc.KOH → B. The end product is an unsaturated hydrocarbon. Identify the nature of reaction in the two steps.

Which of the options show all possible products of combustion of Butene?

In Friedel-Craft's Chlorination of Benzene, Iron III chloride acts as a catalyst. Which is the initial reaction in the generation of an electrophile?

Which one of the following acts as an electrophile in the electrophilic substitution of benzene with bromine?

Bromination of alkene is shown in the following reaction. The reaction is used for:

Among the following, which one has electron withdrawing effect?

For halogenation of benzene, which reagent is used?

Which of the following species are 3,5 (meta) directing groups when a second group is introduced into the benzene ring? I = -NH₂,

II = -CHO,

III = -COOH,

IV = CH₃

The mechanism of reaction of benzene with bromine in the presence of FeBr₃ follows the:

Which one of the following is a powerful electrophile used to attack on the pi electrons of benzene ring?

Benzene in presence of AlCl₃ gives acetophenone when reacts with:

The substitution of -H group by -NO₂ group in benzene is called:

Ethyne molecule is formed when two carbon atoms joined together to form a sigma bond only by:

The introduction of NO₂ group in the benzene ring is called nitration. The nitration of benzene takes place when it is heated with a 1:1 mixture at 50-55°C of:

In this process, higher hydrocarbons can be cracked at lower temperature and lower pressure:

In which of the following is carbon double bonded with itself?

Alkanes containing _ carbon atoms are waxy solids.

Which compound is the most reactive one?

During nitration of benzene, the active nitrating agent is:

The introduction of NO₂ group in benzene ring is called ‘Nitration’. The nitration of benzene takes place when it is heated with a 1:1 mixture of _ at 50-55.

S_ymmetrical alkanes can be produced by:

Ethyne molecule is formed when two carbon atoms joined together to form a sigma bond by:

A gasoline of higher octane number can be obtained by:

The substitution of a '-H' by '-NO₂' group in benzene is called:

Benzene in the presence of AlCl₃ produces acetophenone when reacts with:

H_ydrogenation of unsaturated oils is done by using:

The introduction of the following group in benzene is called:

O

||

R - C -

The IUPAC name of the given compound is:

Which one of the following is a powerful electrophile used to attack on the electrons of a benzene ring?

It is the general formula of:

Which one of the following is an appropriate structure for the product of bromination?

Skeletal formula of a hydrocarbon is given below. What is the IUPAC name of the compound?

Which one of the following reactions shows the combustion of a saturated hydrocarbon?

What will be the product of the reaction given below?

CH₃

\

C = O + HCN (in presence of NaCN /HCl) Y?

/

C₂H₅

The reaction of bromine with benzene in the presence of FeBr3 follows the mechanism of:

When benzene reacts with acetyl chloride (CH₃COCl) in the presence of AlCl₃, acetophenone is formed. The electrophile in this reaction will be:

Which of the following are 3,5 (meta) directing groups when second group is induced in them:i) -NH₃

ii) -CHO iii) -COOH iv) -CH₃

Immediate product formed when propanoyl chloride reacts with benzene is:

Which one of the following is used as a typical catalyst for catalytic cracking?

How many pi bond(s) are there in ethene?

Chlorination and Bromination mostly uses:

What should be the temperature and pressure respectively for catalytic cracking:

Bromination of alkene is shown in the following reaction. This reaction is used for:

Which of the following acts as an electrophile in the electrophilic substitution of benzene with bromine?

Butane molecules can have a maximum number of isomers.

The species which are produced by heterolytic bond breaking and can act as electron pair donors are known as:

The names of functional groups in the following compound X are:

Which derivative of benzene shows maximum reactivity in electrophilic substitution reactions?

Alkenes undergo:

Which of the following molecule shows cis-trans isomers?

The ratio of sigma to pi electrons in benzene is?

Consider the chlorination of methane, the attack of chlorine free radical on methane form methyl free radical occurs in?

Which of the following compound is more acidic?

Three alternate single and double bonds in benzene are called?

Alkylbenzene is formed when benzene is treated with an alkyl halide In the presence of anhydrous aluminum chloride, Identify the type of reaction.

What is the number of isomers of a hydrocarbon having a molecular formula, C₄H₈?

Identify which method is used to prepare Alkynes?

Propanone can be prepared from propyne by:

When 2-bromopropane reacts with Sodium ethoxide, the major product is/are?

Alkylbenzene is formed when benzene is treated with an alkyl halide in the presence of anhydrous aluminum chloride. Identify the type of reaction.

Under suitable conditions alkanes cannot undergo _ reactions?

The addition reaction of 2-butene with HBr produces?

Which of the following reagents can be used to distinguish between 1-Pentyne and 2-Pentyne?

Which one of the following represents nitration of benzene correctly?

In Friedel Craft acylation an acyl group is introduced in benzene ring in the presence of catalyst:

Which of the following is an example of substituent group which release electrons to benzene ring:

In propene pi-bond is formed by sideway overlap of:

Chlorination of benzene in the presence of iron (III) chloride involves mechanism of:

Which one of the following is not a characteristic of benzene?

What is general requirement for free radical substitution reaction of ethane and halogen?

Terminal alkynes show acidic character due to:

Benzene — (Cl₂ / FeCl₃) → Y

— (HNO₃ + H₂SO₄) → Z

Z in this reaction is possibly:

This reaction is an example of:

The 2nd step in chlorination of methane in presence of diffused sun light is

General formula of alkyl group is

Which of the following reactions is used for the production of alcohols on industrial scale?

Which compound is obtained by the elimination of bromopropane?

An activating substituents group activate

Which of the following is Ortho para directing group

The compound that can be most readily sulphonated is

Which of the following substitution of benzene is Ortho para in electrophilic substitution and Ortho para in nucleophilic substitution

Choose the substituent that will direct meta addition on a benzene ring.

Which of the following substituents is electron-withdrawing when added to a benzene ring?

A deactivated substituents groups directs

The ortho and para-hydrogens possesses:

The ortho/para directing group among the following is

Which of the following is the strongest ortho, para directing group :

Which catalyst is used in Friedel-craft alkylation reaction

Which of the following aromatic compounds undergo Friedel-Crafts alkylation with methyl chloride and aluminum chloride?

What is the electrophile in the acylation of benzene

Which of the following is the most activating in electrophilic aromatic substitution?

What is the electrophile in the electrophilic substitution reaction of benzene using oleum and conc. H₂SO₄

This can be a halide in the Friedel Crafts reaction

Which of the following will not easily undergo Friedel Crafts reaction?

In Friedel Craft, Alkylation AICI₃ is used to generate

Reacting bromine with benzene in the presence of sunlight will result in

Acetophenone is a

Benzene does not undergo

During sulphonation of benzene, H₂SO₄ generates the electrophile

Benzene is heated in air with V₂O₅ at 450C it undergoes

The preparation of benzene from acetylene can also be said as

What is required other than anhydrous AICI₃ when toluene is prepared by Friedal craft reaction

Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminium chloride is known as

Which of the following groups are most likely to be o, p directing

In Chlorination of benzene, which of the following acts as an electrophile?

Nitration of benzene is carried out by which of the following reactive species?

The hydrolysis of Benzenetrizonide will yield three moles of

Chemical formula of Benzene is

There are --- resonance structures available in Benzene.

With the help of Cyclic polymerization, Benzene can be prepared from

Physical state of benzene is

Benzene melts at how many degree Celsius

Benzene is soluble in

Which of the following is not a physical property of the Benzene?

Which is not a physical property?

Aniline is a derivative of benzene which contains

How many electrons are there in benzene to form delocalized electronic cloud

What is the molecular formula of Benzenetriozonide

Phenanthrene is a fused polycyclic compound contains _ benzene rings

Ozonolysis of benzene produces

p-bonds in benzene spread over all six carbons, hence they are called

The molecular formula of toluene is

Vanillin is used to give flavor in

Chlorobenzene is one of the

In most of the organic compounds, the group found is

Which is fused cyclic aromatic compound

Chlorination of toluene in the presence of sunlight produces

The oxidation reaction of alkyne (ethyne) with alcoholic potassium permanganate produce

The major alkyne, acetylene compound is produced by which among the following application on natural gas

When ethyne is passed through a red hot tube, _ is formed

The transformation into carboxylic acids of the alkynes takes place with the help of which among the following reagents

Alkynes cannot be prepared from

Ethyne and Ethane can be separated from a mixture by passing it through

1-butyne and 2-butyne can be identified by using which of the following reagents

Which among the following alkynes is used as a rocket fuel

Which among the following product is formed when ethyne undergoes reaction with HgSO₄ and H₂SO₄

Acetylene is oxidised by KMnO₄ to form

The product formed in the reaction of ethyne with dilute H₂SO₄ and Hg²⁺ is

Polymerisation product of propyne is

The product formed in the reaction of propyne with dilute H₂SO₄ and HgSO₄ is

Water can be added across a triple bond in the presence of

When propyne is treated with dilute H₂SO₄ in presence of HgSO₄ the major product will be:

Acetylene is obtained by the electrolysis of

When ethyne is subjected to ozonolysis of, what is the end product

Ethyne on oxidation with alcoholic KMnO₄ forms _

Which of the following is used for welding?

Alkyne are slightly in nature

Alkynes have a _ bonding strength

Alkynes have a _ boiling point than alkanes

Alkynes are slightly _ in nature.

The boiling and melting points of alkynes -------- as their molecular structure becomes more complex.

The first three alkynes have state of matter

Unsaturated carbon with how many bonds at the carbon site is known as alkynes.

The 'sp' hybridization is present in:

Write the IUPAC name of the following alkyne compound

Are alkynes more reactive than alkenes

What is a general formula of alkynes

Acetylene contains:

Different members of alkynes are named in the form of _ derivatives

The nomenclature of alkynes is quite similar to the nomenclature of _

Terminal alkynes and internal alkynes are the _forms of alkynes.

Tetrahydroxy ethane loses two water molecules to form

Glyoxal formed by loss of two water molecules by tetrahydroxy ethane oxidizes to

Alkynes show _ reactions

The first member of the alkyne homologous series' is

Alkanes, alkenes and alkynes is the combination of which of the following elements:

Oxy-acetylene torches can produce temperature as high as

What type of reaction do alkynes undergo across the triple bond

Which of the following are saturated hydrocarbons?

Acetylene is also called

Which of the following compounds react most readily with Br(g)

Which of following is not colorless

Which of the following statement is true regarding the reactivity order in order to form alkyl halides

Addition reaction of hydrogen Bromide to the unsymmetrical alkene follows _

In Alkenes the Carbon atoms are connected to each other by a

What causes the red color of tomatoes?

Addition of hydrogen to ethene forms

When bromine water is added to an alkene, the product is

When two carbon atoms share three electron pairs then they form

The catalyst which is used to break hydrocarbons is

The lower molar mass of hydrocarbons has increased

Alkenes mostly follow the reaction of

If ethene is a reactant, then the product will be

Under certain conditions, the ethene molecule reacts to give

The double bond in ethene is formed from a

Addition reaction of hydrogen Bromide to the unsymmetrical alkene follows _ Alkenes can be oxidized by the help of a powerful oxidizing agent, acidified

Alkenes show _ isomerism Unsaturated oils become partially saturated when they are reacted with

Hydrocarbons containing double bonds are called

C=C has a high electron density area hence it is

Alkenes (C=C) are known to be _ hydrocarbon

C₅-C₁₅ members of alkenes are

How much ethene is required for the ripening of 1 kg of tomatoes

Which of the following processes involves the addition of hydrogen molecule across carbon-carbon multiple-bond?

Higher members of alkenes are

Due to the presence of double bonds, alkenes are

Ethene is prepared from chloroethane this is an example of a reaction _

At which temperature and pressure ethene is polymerized to polyethylene and polyurethane?

In this process small organic molecules (monomer) combine together to form Larger molecules known as

The reduction of ozonides produces

Ozone O₃ is highly reactive allotropic form of

The presence of unsaturation is also detected by

The Baeyer's reagent act as

The Baeyer's reagent has colour of?

Most alkenes are hydrogenated over Raney nickel at about

Raney nickel is a spongy form of _ . It has porous surface

Catalytic hydrogenation of alkenes is used in industry for the manufacturing of