Coordination Compounds PYQs Set 4 (PDF)

Set 4 of 20 · Questions 91-120 of 596

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher · Previous Year Questions JEE Main Chemistry · Coordination Compounds · Set 4 (Q91-120)
Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.
91. $Which formula and name combination is incorrect?$ (1) $K_{3} (Al (C_{2} O_{4})_{3}) - Potassium trioxalatoaluminate (II)$ (2) $(Pt (NH_{3})_{2} Cl (NO_{2})) - Diamminechloridonitrito-N-platinum(II)$ (3) $(CoCl_{2} (en)_{2}) Cl - Dichloridodiethylenediammine cobalt(II) chloride$ (4) $(Co (NH_{3})_{4} (H_{2} O) Cl) Cl_{2} - Tetraammineaquachloridocobalt(III)chloride$ 92. $The set which does not have ambidentate ligand(s) is$ (1) $C_{2} O_{4}^{2 -}, ethylene diammme, H_{2} O$ (2) $E D T A^{4 -}, N C S^{-}, C_{2} O_{4}^{2 -}$ (3) $N O_{2}^{-}, C_{2} O_{4}^{2 -}, E D T A^{4 -}$ (4) $C_{2} O_{4}^{2 -}, N O_{2}^{-}, N C S^{-}$ 93. $' X ' is the number of acidic oxides among VO_{2}, V_{2} O_{3}, CrO_{3}, V_{2} O_{5} and Mn_{2} O_{7} . The primary valency of cobalt in (Co (H_{2} NCH_{2} CH_{2} NH_{2})_{3})_{2} (SO_{4})_{3} is Y. The value of X + Y is .$ (1) $3$ (2) $4$ (3) $2$ (4) $5$ 94. $Yellow compound of lead chromate gets dissolved on treatment with hot NaOH solution. The product of lead formed is a :$ (1) $Tetraanionic complex with coordination number six$ (2) $Neutral complex with coordination number four$ (3) $Dianionic complex with coordination number six$ (4) $Dianionic complex with coordination number four$ 95. $Mixture X = 0.02 mole of [Co(N H_{3})_{5} S O_{4}]Br and 0.02 mole of [Co (N H_{3})_{5} Br] S O_{4} was prepared in 2L of solution 1 L of mixture X + excess A g N O_{3} —\to Y 1 L of mixture X + excess B a C l_{2} —\to Z Number of moles Y and Z are$ (1) $0.03, 0.02$ (2) $0.01, 0.01$ (3) $0.02, 0.01$ (4) $0.02, 0.02$ 96. $Which of the following complex is octahedral, diamagnetic and the most stable?$ (1) $N a_{3} [C o C l_{6}]$ (2) $[Ni (N H_{3})_{6}] C l_{2}$ (3) $K_{3} [Co (C N)_{6}]$ (4) $[Co (H_{2} O)_{6}] C l_{2}$ 97. $Which one of the following has the highest molar conductivity?$ (1) $Diammine dichloroplatinum (II)$ (2) $Tetraamminedichlorocobalt (III) chloride$ (3) $Potassium hexacyano ferrate (II)$ (4) $Hexa aquo chromium (III) chloride$ 98. $The IUPAC name for ((CO)_{5} Mn - Mn (CO)_{5}) is$ (1) $bis(pentacarbonylmanganate)(VII)$ (2) $bis(pentacarbonyl dimanganese)$ (3) $bis(pentacarbonyl manganese)$ (4) $decacarbonyldimanganate(VII).$ 99. $Which one of the following is tris (ethane-1,2-diammine) cobalt (III) sulphate?$ (1) $(Co (en)_{2})_{2} (SO_{4})_{3}$ (2) $(Co (en)_{2} SO_{4})$ (3) $(Co (en)_{3}) SO_{4}$ (4) $(Co (en)_{3})_{2} (SO_{4})_{3}$ 100. $The increasing order of field strength of ligands is$ (1) $NH_{3} < H_{2} O < Cl^{-} < CO < CN^{-}$ (2) $Cl^{-} < H_{2} O < NH_{3} < CN^{-} < CO$ (3) $Cl^{-} < CO < CN^{-} < H_{2} O < NH_{3}$ (4) $CN^{-} < CO < NH_{3} < Cl^{-} < H_{2} O$ 101. $The IUPAC name of [Ni (N H_{3})_{4}] [N i C l_{4}] is :$ (1) $Tetrachloronickel(II) tetraamminenickel (II)$ (2) $Tetraamminenickel(II) tetrachloronickel (II)$ (3) $Tetraamminenickel(II) tetrachloronickelate (II)$ (4) $Tetraamminenickel(II) tetrachloronickelate (0)$ 102. $Match List - I with List - II. List - I (Transition metal ion) (A) Ti^{3 +} (B) V^{2 +} (C) Ni^{2 +} (D) Sc^{3 +} List - II (Spin only magnetic moment (B.M.)) (I) 3.87 (II) 0.00 (III) 1.73 (IV) 2.84 Choose the correct answer from the options given below :$ (1) $(A) - (III), (B) - (I), (C) - (IV), (D) - (II)$ (2) $(A) -(III), (B) - (I), (C) - (II), (D) - (IV)$ (3) $(A) -(IV), (B) - (II), (C) - (III), (D) - (I)$ (4) $(A) - (II), (B) - (IV), (C) - (I), (D) - (III)$ 103. $The degenerate orbitals of (Cr (H_{2} O)_{6})^{3 +} are:$ (1) $d_{xz} and dyz$ (2) $d_{yz} and d z^{2}$ (3) $d z^{2} and d_{xz}$ (4) $d x^{2} - y^{2} and d_{xy}$ 104. $Identify the incorrect match from the following:$ (1) $(Cr (H_{2} O)_{6}) Br_{2} - Paramagnetic$ (2) $Na_{4} (Fe (CN)_{6}) - Diamagnetic$ (3) $(Ni (CO)_{4}) - Paramagnetic$ (4) $Na_{2} (NiCl_{4}) - Paramagnetic$ 105. $The primary and secondary valencies of cobalt respectively in [Co (N H_{3})_{5} Cl] C l_{2} are :$ (1) $3 and 5$ (2) $2 and 6$ (3) $2 and 8$ (4) $3 and 6$ 106. $In metal carbonyl having general formula M (C O)_{x} where M = metal x = 4 and the metal is bonded to$ (1) $carbon and oxygen$ (2) $C \equiv O$ (3) $oxygen$ (4) $carbon$ 107. $The IUPAC name for the complex [Co (N H_{3})_{5} (N O_{2})] C l_{2} is :$ (1) $Nitrito-N-pentaamminecobalt(III) chloride$ (2) $Nitrito-N-pentaamminecobalt(II) chloride$ (3) $Pentaamminenitrito-N-cobalt(II) chloride$ (4) $Pentaamminenitrito-N-cobalt(III) chloride$ 108. $The correct statements among I to III are (I) Valence bond theory cannot explain the color exhibited by transition metal complexes. (II) Valence bond theory can predict quantitatively the magnetic properties of transition metal complexes. (III) Valence bond theory cannot distinguish ligands as weak and strong field ones.$ (1) $(I) and (III) Only$ (2) $(I) and (II) Only$ (3) $(I), (II) and (III)$ (4) $(II) and (III) Only$ 109. $The complexes [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the examples of which type of isomerism?$ (1) $Linkage isomerism$ (2) $Ionization isomerism$ (3) $Coordination isomerism$ (4) $Geometrical isomerism$ 110. $The highest value of the calculated spin only magnetic moment (in BM) among all the transition metal complexes is:$ (1) $5.92$ (2) $6.93$ (3) $3.87$ (4) $4.90$ 111. $Which one of the following complexes shows optical isomerism ? (en = ethylenediamine)$ (1) $cis[Co(en)2Cl2]Cl$ (2) $trans[Co(en)2Cl2]Cl$ (3) $[Co(NH3)4Cl2]Cl$ (4) $[Co(NH3)3Cl3]$ 112. $Copper sulphate dissolves in excess of KCN give ?$ (1) $[Cu(CN)4]2-$ (2) $Cu(CN)2$ (3) $CuCN$ (4) $[Cu(CN)4]3-$ 113. $The wavelengths of light absorbed by the complexes (Ni (H_{2} O)_{6})^{2 +}, (Ni (en)_{3})^{2 +}, (Ni (H_{2} O)_{4} en)^{2 +} are λ_{1}, λ_{2}, λ_{3} respectively. The correct order of wavelengths is$ (1) $λ_{1} > λ_{2} > λ_{3}$ (2) $λ_{3} > λ_{2} > λ_{1}$ (3) $λ_{1} > λ_{3} > λ_{2}$ (4) $λ_{2} > λ_{3} > λ_{1}^{\infty}$ 114. $To inhibit the growth of tumours, identify the compounds used from the following: (A) EDTA (B) Coordination Compounds of Ft (C) D - Penicillamine (D) Cis - Platin Choose the correct answer from the option given below:$ (1) $B and D Only$ (2) $C and D Only$ (3) $A and B Only$ (4) $A and C Only$ 115. $If N i^{2 +} is replaced by P t^{2 +} in the complex [N i C l_{2} B r_{2}]^{2 -}, which of the following properties are expected to get changed? (A) Geometry (B) Geometrical isomerism (C) Optical isomerism (D) Magnetic properties$ (1) $A and D$ (2) $A,B and C$ (3) $B and C$ (4) $A, B and D$ 116. $The coordination number and the oxidation state of the element ' M' in the complex (M (en)_{2} (C_{2} O_{4})) NO_{2} (where, en is ethane-1,2diamine) are respectively$ (1) $6 and 2$ (2) $4 and 2$ (3) $6 and 3$ (4) $4 and 3$ 117. $On treating a compound with warm dil. H_{2} S O_{4}, gas X is evolved which turns K_{2} Cr_{2} O_{7} paper acidified withdil. H_{2} S O_{4} to a green compound Y.X and Y respectively are :$ (1) $X = S O_{2}, Y = C r_{2} (S O_{4})_{3}$ (2) $X = S O_{2}, Y = C r_{2} O_{3}$ (3) $X = S O_{3}, Y = C r_{2} O_{3}$ (4) $X = SO_{3}, Y = C r_{2} (S O_{4})_{3}$ 118. $The co-ordination number of Fe and Co in the complex ions, (Fe (C_{2} O_{4})_{3})^{3 -} and (Co (SCN)_{4})^{2 -} are respectively$ (1) $6 and 8$ (2) $4 and 6$ (3) $6 and 4$ (4) $3 and 4$ 119. $Total number of unpaired electrons present in the central metal atoms/ions of (Ni (CO)_{4}), (NiCl_{4})^{2 -}, (PtCl_{2} (NH_{3})_{2}), (Ni (CN)_{4})^{2 -} and (Pt (CN)_{4})^{2 -} is____-$ 120. $The crystal field splitting energy of (Co (oxalate)_{3})^{3 -} complex is ' n^{’} times that of the (Cr (oxalate)_{3})^{3 -} complex. Here ' n ' is____. (Assume Δ_{0} ≫ P)$