Transition Elements

MDCAT • Chemistry

294 MCQs — Click "Reveal" to see the correct answer

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  1. 1
    UHS MDCAT 2008

    Name the oxide in which N has the highest oxidation number:

  2. 2
    UHS MDCAT 2008

    The percentage of carbon in medium carbon steel is:

  3. 3
    UHS MDCAT 2009

    Chromyl Test is performed to confirm:

  4. 4
    UHS MDCAT 2009

    Colour of the transition metal ions/compounds is due to the electrons present in:

  5. 5
    UHS MDCAT 2010

    KMnO4 acts as a/an:

  6. 6
    UHS MDCAT 2010

    The geometry of the complexes depends upon the type of _ taking place in the valence shell of the central metal atom.

  7. 7
    UHS MDCAT 2012

    Oxidation state of ‘Mn’ in KMnO4, K2MnO4, MnO2 and MnSO4 is in the order:

  8. 8
    UHS MDCAT 2013

    Oxidation state of ‘Fe’ in K3[Fe(CN)6] is:

  9. 9
    UHS MDCAT 2013

    Which one pair has the same oxidation state of ‘Fe’?

  10. 10
    UHS MDCAT 2015

    Electronic configuration of Gold is:

  11. 11
    UHS MDCAT 2015

    [Ti(H2O)6]3+ transmits:

  12. 12
    UHS MDCAT 2017

    Chromyl Chloride test is performed to confirm:

  13. 13
    UHS MDCAT 2017

    Violet color of [Ti(H2O)4]+is due to:

  14. 14
    UHS MDCAT 2017

    Scandium has the atomic number 21, which one will be its electronic configuration?

  15. 15
    UHS MDCAT 2018

    Which is the correct electronic configuration of Chromium ?

  16. 16
    UHS MDCAT 2018

    The shape of [Co(NH3)6]3+ complex is:

  17. 17
    UHS MDCAT 2019

    Which of the following is the electronic configuration of ?

  18. 18
    UHS MDCAT 2023

    Which of the following electronic configuration is correct for ?

  19. 19
    UHS MDCAT 2023

    Which of the following is correct electronic configuration of iron (II) ion (atomic no. of Fe is =26)?

  20. 20
    UHS MDCAT 2023

    Which of the following transition metal show 3d5 configuration in its +2-oxidation state?

  21. 21
    UHS MDCAT 2024

    The oxidation number of 'Mn' in KMnO4, is

  22. 22
    PMDC MDCAT 2025

    Which one of the following is a coinage metal:

  23. 23
    PMDC MDCAT 2025

    Number of unpaired electrons present in the ground state of Fe3+ (Atomic number of Fe=26):

  24. 24
    Transition metal compounds containing unpaired electrons are
  25. 25
    When potassium chromate is treated with an acid, it produces?
  26. 26
    Compound attracted into a magnetic field are called
  27. 27
    Potassium ferrocyanide is which type of salt?
  28. 28
    Which of the following is NOT an alloy
  29. 29
    The ligand, diethylene triamine is an example of?
  30. 30
    What is the oxidation number of Mn is KMnO₄?
  31. 31
    The oxidation number of Cobalt in the given coordination complex is: [Co(H₂NCH₂CH₂NH₂)₃]₂(SO₄)₃
  32. 32
    Which one has one unpaired electron in the valence shell?
  33. 33
    The binding energy of transition elements weakens progressively upto group:
  34. 34
    Which of the following is correct electronic configuration of iron (II) ion (atomic number of Fe = 26)?
  35. 35
    Which of the following electronic configuration is correct for 24Cr?
  36. 36

    Which of the following transition metal show 3d⁵ configuration in its +2-oxidation state

  37. 37
    The outer shell electronic configuration of transition block elements is give by
  38. 38

    Which of the following ions forms most stable complex compound?

  39. 39
    The binding energy of transition metals increases upto group:
  40. 40
    The transition element which doesn't show variable valency:
  41. 41
    In which pair, one has all unpaired d-orbitals while other have all paired d-orbitals?
  42. 42

    [PtCl(H2O)3(NH3)2]⁺ has structure

  43. 43
    f-Block elements are called
  44. 44
    Paramagnetic behaviour of transition elements is due to presence of ________?
  45. 45
    Which one of the following has more unpaired electrons?
  46. 46
    The transition element which doesn't show variable valency is
  47. 47

    In 3rd series of transition elements, paramagnetic behavior is maximum for Mn+2 and ________

  48. 48

    Co-ordination number of [Co(en)2Cl2]⁺ is

  49. 49

    In the complex, potassium hexacyanoferrate (III) K3[Fe(CN)6] the coordination number of Fe is:

  50. 50

    The octahedral geometry of complexes [Co(NH3)6]³⁺ has hybridization

  51. 51
    The color of transition metal complexes is due to transition of electron between
  52. 52

    Violet color of [Ti(H2O)6]³⁺ ion is due to the

  53. 53

    [Ti(H2O)6] ³⁺ transmits

  54. 54

    What are the coordination number of Fe and Cu in the following compounds K4[Fe(CN)6], [Cu(NH3)4]SO4 respectively

  55. 55

    The shape of [Co(NH3)6]³⁺ complex is

  56. 56
    Ligands having two lone pair of electrons for donations to the central transition metal ions are known as
  57. 57

    Oxidation state of 'Fe' in K3[Fe(CN)6] is

  58. 58
    Tick the correct statement
  59. 59
    The geometry of complexes depends upon type of ________ taking place in the valence shell of central metal atom:
  60. 60

    Oxidation state of 'Mn' in KMnO4, K2MnO4, MnO2 and MnSO4 is in the order

  61. 61
    The total number of transition element is
  62. 62
    Valence electronic configuration Cu²⁺ is
  63. 63
    Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have partially filled orbital in d-subshell?
  64. 64
    Which of the following is the electronic configuration of Cr?
  65. 65
    Scandium has atomic number 21; which one will be its electronic configuration?
  66. 66
    Which element of 3-d series of periodic table shows the electronic configuration of 3d⁸, 4s²?
  67. 67
    The anomalous electronic configuration shown by chromium and copper among 3-d series of elements is due to:
  68. 68

    Electronic configuration of Gold is

  69. 69
    The paramagnetic character of substances is due to the presence of
  70. 70
    When light is exposed to transition element, then electrons jump from lower orbitals to higher orbitals in
  71. 71
    The geometry of [Fe(CO)₅] is
  72. 72
    What is the nature of co-ordination sphere
  73. 73
    Which one complex is more stable
  74. 74
    During the formation of complex compound the Ligands bind with central metal ion/atom by
  75. 75

    When K4[Fe(CN)6] is dissolved in a solution of salt, then it produces

  76. 76
    The ability of transition elements to form complexes is due to:
  77. 77
    While assigning the name of a complex compounds, the correct order is
  78. 78
    The algebraic sum of the charges present on the central atom ion and the total charge on the ligands is called
  79. 79
    d-d transition cannot be shows by
  80. 80
    Ti⁺³ shows minimum absorption (maximum transmittance) at ________ and ________ wavelength
  81. 81
    Number of electrons involved in d-d transition of [Ti(H₂O)₆]³⁺
  82. 82
    Sc³⁺ has 3d° configuration, its colour will be
  83. 83
    Which of the following transition metal forms colourless compounds
  84. 84

    Which of the following compound is expected to be colored

  85. 85

    TiCl4 is used as catalyst for manufacture of

  86. 86
    Catalyst used for ammonia synthesis is
  87. 87
    Which transition metals serves as catalyst for oxidation of alkanes
  88. 88
    Which has same charge on central metal atom as the co-ordination sphere
  89. 89
    Which electronic configuration can have possibility of +7 oxidation state
  90. 90
    Which of the following shows only +2 oxidation state
  91. 91

    Which two pairs show same oxidation state of iron

  92. 92
    The highest oxidation state of manganese is
  93. 93

    The oxidation number of Mn in [MnO4]⁻² is

  94. 94
    In complex compounds, the oxidation number is written in
  95. 95
    The oxidation number of central metal atom in [Ni(CO)₄] is
  96. 96
    Which complex shows zero oxidation state of the transition metal
  97. 97
    Zinc does not show variable oxidation state, because
  98. 98

    At which oxidation state Cu achieves electronic configuration of Zn+2

  99. 99
    The element which gains electronic configuration of a noble gas at +3 oxidation state
  100. 100
    Which of the followings has a complete d-subshell in atomic as well as cationic state
  101. 101
    Correct electronic configuration of Mn
  102. 102
    Balochistan MDCAT 2010
    Which of the following is a typical transition metal?
  103. 103
    The general electronic configuration of 3d series of transition elements is
  104. 104
    Which pair of elements has abnormal electronic configuration
  105. 105
    The correct electronic configuration of 'Cr' is
  106. 106
    The location of transition elements is in between
  107. 107
    Which one possesses maximum number of unpaired electrons
  108. 108
    d-block elements generally exhibit
  109. 109
    d-d transition is not possible when d-subshell is
  110. 110
    Which of the following has highest magnetic moment?
  111. 111
    Which of the following has lowest binding energy?
  112. 112
    Which of the following specie will impart colour to an aqueous solution?
  113. 113
    The number of d-electrons in Zn²⁺ are
  114. 114

    In the complex K4[Fe(CN)4(H₂O)₂], the coordination number of central metal is

  115. 115
    The electronic configuration of an element is [Ar]4s², 3d² its atomic number will be
  116. 116

    Which of the following cannot acts as ligands?

  117. 117
    The typical transition element is
  118. 118

    The total no. of transition elements is

  119. 119

    The first transition series starts with

  120. 120
    Balochistan MDCAT 2024

    Compounds attracted into a magnetic field are called:

  121. 121
    Balochistan MDCAT 2024

    When potassium chromate is treated with an acid, it produces:

  122. 122
    Balochistan MDCAT 2024

    Transition metal compounds containing unpaired electrons are:

  123. 123
    Balochistan MDCAT 2024

    Which of the following is used for galvanizing iron sheet?

  124. 124
    KPK MDCAT 2024

    Cu2+ salt solution is blue in colour due to transition of electrons from

  125. 125
    KPK MDCAT 2024

    Potassium ferrocyanide is a:

  126. 126
    FMDC MDCAT 2024

    Transition element Vanadium mostly act as

  127. 127
    FMDC MDCAT 2024

    What is the range of atomic numbers of the 3d series of transition elements?

  128. 128
    UHS MDCAT 2024

    Which of the following is NOT a property of transition elements?

  129. 129
    UHS MDCAT 2024

    Which of the following is NOT an Alloy?

  130. 130
    Sindh MDCAT 2024

    An example of a bidentate ligand among the following is:

  131. 131
    Sindh MDCAT 2024

    Chelate means:

  132. 132
    Balochistan MDCAT 2022

    Geometry of complexes depends upon?

  133. 133
    Balochistan MDCAT 2022

    The outer shell configuration of transition block elements is given by:

  134. 134
    KPK MDCAT 2022

    Which one has Purssian blue colour?

  135. 135
    KPK MDCAT 2022

    What is the composition of alloy, German silver?

  136. 136
    KPK MDCAT 2022

    Which of the following ions form the most stable complex compounds.

  137. 137
    UHS MDCAT 2022

    In which pair one has all Unpaired d orbitals while other have all paired d orbitals?

  138. 138
    Sindh MDCAT 2022

    Heating a mixture of chromite are (FeOCr2O3) & K2CO3 in air is to manufacture:

  139. 139
    Balochistan MDCAT 2023

    Why do transition elements form alloys so easily?

  140. 140
    Balochistan MDCAT 2023

    Which of the following is a bidentate ligand?

  141. 141

    Brass is an alloy of

  142. 142
    Balochistan MDCAT 2022

    Which pair of ions have five unpaired d-electrons?

  143. 143
    Sindh MDCAT 2023 (Retake)

    Which of the following has the maximum number of unpaired electrons?

  144. 144
    Sindh MDCAT 2023 (Retake)

    NH2 (amine) is an example of:

  145. 145

    Identify the molecular formula of Furan:

  146. 146

    Which of the following electronic configurations is correct for 24Cr?

  147. 147

    Which of the following transition metals show a 3d5 configuration in their +2 oxidation state?

  148. 148
    UHS MDCAT 2023 UHS MDCAT 2022

    What is the proton (atomic number) of an element that has four unpaired electrons in its ground state?

  149. 149
    FMDC MDCAT 2023

    The binding energy of transitional elements weakens progressively upto group:

  150. 150
    FMDC MDCAT 2023

    In transition elements number of unpaired electrons increase upto group number:

  151. 151
    Sindh MDCAT 2023

    Why do transition elements form interstitial compounds?

  152. 152
    UHS MDCAT 2018

    Ligands having two lone pair of electrons for donation to the central transition metal ion are known as:

  153. 153

    The transition element which shows fixed 2+ oxidation state in its compound is:

  154. 154

    The color of Zn2+ compounds is:

  155. 155

    Fe is precipitated out when Mg strip is dipped in

  156. 156
    FMDC MDCAT 2018

    Which of the following elements does not belong to the f-block of elements?

  157. 157

    In movies during the fight, a blood-red solution is used as artificial blood. Which of the following complex ions is used for this solution?

  158. 158
    ETEA MDCAT 2017

    To differentiate between the white ppt of AgCl and off-white ppt of AgBr we use:

  159. 159
    ETEA MDCAT 2019

    Ethylenediamine diacetate is

  160. 160
    ETEA MDCAT 2019

    Which one can form more acidic oxide?

  161. 161
    ETEA MDCAT 2019

    Co-ordination number of [Co(en)2Cl2]is

  162. 162
    ETEA MDCAT 2019

    Which ions are used as catalysts in the reaction between persulfate ions and iodide ions?

  163. 163
    ETEA MDCAT 2019

    In the complex, potassium hexacyanoferrate (III) K3 [Fe(CN)6] the coordination of the Fe is

  164. 164
    ETEA MDCAT 2018

    The compound of manganese with zero reducing power is:

  165. 165
    ETEA MDCAT 2018

    The oxidation state of platinum in [Pt(NH3)4(NO2)Cl]SO4 is:

  166. 166

    The chelating ligand out of the following is:

  167. 167
    UHS MDCAT 2017 (Reconduct)

    How many ligands does K4[Fe(CN)6] contains:

  168. 168
    UHS MDCAT 2017 (Reconduct)

    Identify the element that has maximum oxidation states:

  169. 169
    UHS MDCAT 2016

    Which element of 3d series of periodic table shows the electronic configuration of 3d8, 4s2?

  170. 170
    UHS MDCAT 2016

    The anomalous electronic configuration shown by chromium and copper among the 3-D series of elements is due to:

  171. 171

    Oxidation state of 'Fe' in K3[Fe(CN)6] is:

  172. 172
    UHS MDCAT 2014

    The percentage of carbon in different types of iron products is in the order of

  173. 173
    UHS MDCAT 2014

    The electronic configuration of Manganese (Mn) is

  174. 174
    UHS MDCAT 2014

    Coinage metals Cu, Ag, and Au are the least reactive because they have:

  175. 175
    UHS MDCAT 2011

    Pick the correct statement:

  176. 176
    UHS MDCAT 2012

    Which pair of transition elements shows abnormal electronic configuration?

  177. 177

    Oxidation state of 'Mn' in KMnO4, K2MnO4, MnO2 and MnSO4 is in the order:

  178. 178

    Which oxidation state gives evidence for d orbital?

  179. 179

    What type of bond is present between metals and ligands in a complex?

  180. 180

    The location of transition elements is in between?

  181. 181

    During bond formation, d-orbitals splits into _ of orbitals?

  182. 182

    Pure metal:

  183. 183

    Non-typical transition elements belong to?

  184. 184

    An element becomes paramagnetic if it has _?

  185. 185

    What is the coordination number of Pt in [PtCl(NO2)(NH3)4]

  186. 186

    Lanthanides and actinides are also called as _.

  187. 187

    In the production of 'Wrought Iron', Mg, Si and P are removed in the form of ------------

  188. 188

    The central atom along with ligands is called

  189. 189

    Which element has completely filled d subshell in both atomic and ionic form?

  190. 190

    Which oxidation is possessed by all the elements of group lll B ?

  191. 191

    Why does Cr show 3d54s1 configuration instead of 3d44s2?

  192. 192

    Which of the following can form a chelate?

  193. 193

    What are d-block elements are called?

  194. 194

    The compound or complex ion which has a ring in its structure?

  195. 195

    Paramagnetic behaviour of transition elements is due to the presence of:

  196. 196

    What is the general trend of melting and boiling point of transition elements along the period?

  197. 197

    Those elements in which d or f orbitals are in the process of completion are called _.

  198. 198

    Sc mostly exist in which of the following oxidation state?:

  199. 199
    PMC Practice Test 2 2021

    Which of the following compounds is sold as fertilizer?

  200. 200

    1st series of transition elements start from?

  201. 201

    When light is exposed to transition elements then electrons jump from lower orbitals to higher orbitals in:

  202. 202

    Which of the following elements can form interstitial alloy with transition elements?

  203. 203
    PMC Practice Test 3 2021 PMC Practice Test 5 2021

    The oxidation number of Nickel in [Ni(CO)]4] is:

  204. 204

    Non-stoichiometric compounds of transition elements are called:

  205. 205

    Which one of the following is an example of a transition element?

  206. 206

    What is the correct option regarding the following compound?K2[Cu(CN)4]

  207. 207

    Any process of chemical decay of metals due to the action of the surrounding medium is called?

  208. 208

    Why do transition metals have strong metallic bonding?

  209. 209

    The formation of coordination complex compounds formed by transition metals is explained by?

  210. 210

    How many d-block elements are present in the periodic table?

  211. 211

    The species which donates electrons to the central metal atom in the coordination sphere is called _.

  212. 212

    Which of the following properties is not related to transition metals _?

  213. 213

    When the central atom of the coordination compound is sp3d2 hybridization, the expected geometry will be?

  214. 214

    What is the coordination number of Cu metal in [Cu (NH3)4]SO4?

  215. 215

    Which one of the following has the highest number of unpaired electrons?

  216. 216

    In complex compounds, the oxidation number is written in _.

  217. 217

    The oxidation state of transition elements is usually

  218. 218

    Which of these are coinage metals?

  219. 219

    Brass and bronze have one metal in common?

  220. 220

    The oxidation number of Mn in [MnO4]-2 is

  221. 221

    The melting points and boiling points up to the middle of 3d series:

  222. 222

    The central transition metal atom along with ligands is called:

  223. 223

    Which one of the following pairs shows abnormal electronic configuration?

  224. 224

    Which of the following is a non-typical transition element?

  225. 225

    The important transition element/s used in industries is/are:

  226. 226

    The splitting of d orbital in the bonding is called:

  227. 227

    What is the trend of number of unpaired electrons for transition elements across a period?

  228. 228

    Which bonds are formed between transition elements and ligands?

  229. 229

    Why do transition elements show color?

  230. 230

    The most stable element in the periodic table is:

  231. 231
    ETEA MDCAT 2018

    Elements of which block of the periodic table shows variable oxidation state?

  232. 232

    With which metals does iron make steel alloy?

  233. 233

    When copper is heated in air, an oxide is formed that has the colour:

  234. 234

    Which of the following elements are present in III B group?

  235. 235

    The colour showed by the solution of [Ti(H₂O)₆]³⁺ is:

  236. 236

    The atomic radius of transition elements in the periodic table _ along a period.

  237. 237

    What is the correct formula of Hexa-aquacobalt (II) ion?

  238. 238

    [Co(NH₃)₆]³⁺ has a shape of:

  239. 239

    Galvanised Iron sheets have a coating of _.

  240. 240

    Coinage metals belong to:

  241. 241

    The decrease in atomic radii is small in transition elements due to:

  242. 242

    The color of Sc⁺³ is:

  243. 243

    Which of the following is a transition metal?

  244. 244

    A compound having coordination number 6 has geometry:

  245. 245

    Unpaired electron trend of transition elements:

  246. 246

    Which transition metal is used the most in industries?

  247. 247

    Geometry of the complex compounds usually depends upon?

  248. 248

    The transition elements belongs to Group VIB are:

  249. 249

    Hardness of transition metals is due to _?

  250. 250

    Which of the following properties are associated with transition metals?

  251. 251

    Au3+ has _ configuration.

  252. 252
    PMC Practice Test 5 2021

    Oxidation Number of all the elements in the free state is?

  253. 253
    PMC Practice Test 4 2021

    Which statement is true for K2[Cu(CN)4] ?

  254. 254
    PMC Practice Test 4 2021

    Which of the following is typical transition element?

  255. 255
    PMC Practice Test 1 2021 PMC Practice Test 1 2022

    f-block elements are called?

  256. 256

    d-block elements are also called as _.

  257. 257

    d-block elements are present _ in the periodic table.

  258. 258

    What are interstitial compounds?

  259. 259

    Which of the following sets is of coinage metals?

  260. 260
    Sindh MCAT NTS 2019

    The colour of transition metal complexes is due to:

  261. 261
    Sindh MCAT NTS 2019

    The ligand field effect splits five degenerate d-orbitals into two sets with different energies, the pair of high energy degenerate orbitals is:

  262. 262
    Sindh MCAT NTS 2019

    Choose the correct IUPAC name for the following complex.[Cr(NH3)4Cl2]Cl

  263. 263
    Sindh MCAT NTS 2019

    Paramagnetic elements contain:

  264. 264
    Sindh MCAT NTS 2019

    The chemical name of K2[Zn(OH)4] is:

  265. 265

    If a person is injected by shot of a gun and all the bullets are not removed from his body, it may cause poisoning by:

  266. 266

    A six-coordinate complex of formula CrCl3.6H2O has green color. A 0.1 M solution of the complex, when treated with an excess of AgNO3, gave 28.7 g of a white precipitate. The formula of the complex would be_.

  267. 267
    NUMS MDCAT 2019

    Scandium, Sc, is the first of the 3d blocks of elements in the Periodic table.Which properties of Sc approve the above fact?

  268. 268

    Which of the following does not act as ligand in the formation of complexes?

  269. 269

    The octahedral geometry of the complex [Co(NH3)6]2+ has hybridization:

  270. 270

    The total number of transition elements is:

  271. 271

    Valence electronic configuration Cu+2 is (29Cu)

  272. 272

    IUPAC name for [Pt Cl Br (NO2) (NH3)3] Cl is:

  273. 273

    Which of the following transition metals in its ground state have unpaired electrons in an s-orbital?

  274. 274
    Sindh MCAT NTS 2016 SMBBMC Lyari

    Identify from the following the example in which the complex is an anion:

  275. 275

    Variable valency is generally exhibited by:

  276. 276

    Prussian blue is:

  277. 277
    FMDC MDCAT 2022 PMDC MDCAT 2020

    The transition element which doesn't show variable valency?

  278. 278
    UHS MDCAT 2024 PMDC MDCAT 2020

    Electronic configuration of chromium (proton number 24) is:

  279. 279
    PMDC MDCAT 2020

    In 3rd series of transition elements, paramagnetic behaviour is maximum for Mn+2 and:

  280. 280
    Sindh MCAT NTS 2016 DUHS and JSMU

    Which of the following has the maximum number of unpaired d electrons?

  281. 281
    Sindh MCAT NTS 2014 DUHS and JSMU

    Which one of the following ions exhibits d-d transition and paramagnetism as well?

  282. 282
    Sindh MCAT NTS 2014 DUHS and JSMU

    Zinc reacts with dil. H2SO4 to give H2. It also reacts with conc. H2SO4 to form SO2. In these reactions:

  283. 283
    Sindh MCAT NTS 2014 DUHS and JSMU

    Which of the following is not an interstitial compound?

  284. 284

    EDTA ion is a _ ligand.

  285. 285

    Chromium dissolves in dilute H2SO4 for [Cr(H2O)6]2. The colour of the ion is:

  286. 286

    Transition Elements usually show:

  287. 287
    UHS MDCAT 2019

    Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have a partially filled orbital in d-subshell?

  288. 288

    Impurities of lead in silver are removed by:

  289. 289

    The color of transition metal complexes is due to transition of electrons between:

  290. 290
    Balochistan MDCAT 2023

    Group IB is called the coinage metals. Which one is not true about this group?

  291. 291

    Lanthanides and Actinides resemble in:

  292. 292
    UHS MDCAT 2022

    Which of the following complex show a tetrahedral geometry?

  293. 293

    Which one pair has the same oxidation state of 'Fe'?

  294. 294

    Which is the correct electronic configuration of chromium (24Cr)?