Coordination Compounds PYQs Set 14 (PDF)

Set 14 of 20 · Questions 391-420 of 596

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Mere Teacher · Previous Year Questions JEE Main Chemistry · Coordination Compounds · Set 14 (Q391-420)
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391. $The type of isomerism shown by the complex [CoCl_{2} (en)_{2}] is$ (1) $geometrical isomerism$ (2) $coordination isomerism$ (3) $ionization isomerism$ (4) $linkage isomerism.$ 392. $Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The total number of geometrical isomers shown by Co(en)2Cl2+complex ion is three. Reason (R): Co(en)2Cl2+complex ion has an octahedral geometry.In the light of the above statements, choose the most appropriate answer from the options given below :$ (1) $Both (A) and (R) are correct but (R) is not the correct explanation of (A)$ (2) $(A) is not correct but (R) is correct$ (3) $Both (A) and (R) are correct and (R) is the correct explanation of (A)$ (4) $(A) is correct but (R) is not correct$ 393. $Which of the following has longest C-O bond length ? (Free C-O bond length in CO is 1.128Å)$ (1) $[Mn(CO)6]+$ (2) $Ni(CO)4$ (3) $[C o (C O)_{4}]^{⊖}$ (4) $[Fe(CO)4]2-$ 394. $The Crystal Field Stabilization Energy (CFSE) and magnetic moment (spin-only) of an octahedral aquacomplex of a metal ion (M^{2 +}) are -0. 8 Δ_{0} and 3.87 BM, respectively. Identify (M^{2}):$ (1) $V^{3 +}$ (2) $C r^{3 +}$ (3) $M n^{4 +}$ (4) $C o^{2 +}$ 395. $The bond length in CO is 1.128 Å. What will be the bond length of CO in Fe (C O)_{5} ?$ (1) $1.158 Å$ (2) $1.128 Å$ (3) $1.178 Å$ (4) $1.118 Å$ 396. $Which one of the following is an inner orbital complex as well as diamagnetic in behaviour?$ (1) $[Z n (N H_{3})_{6}]^{2 +}$ (2) $[C r (N H_{3})_{6}]^{3 +}$ (3) $[C o (N H_{3})_{6}]^{3 +}$ (4) $[N i (N H_{3})_{6}]^{2 +} (Atomic number: Z n = 30, C r = 24, C o = 27, Ni = 28)$ 397. $Which of the following is considered to be an anticancer species$ (1) (2) (3) (4) 398. $Which of the following will exhibit maximum ionic conductivity?$ (1) $K_{4} [F e (C N)_{6}]$ (2) $[C o (N H_{3})_{6}] C l_{3}$ (3) $[C u (N H_{3})_{4}] C l_{2}$ (4) $[N i (C O)_{4}]$ 399. $The d-electron configuration of [Ru (en)_{3}] Cl_{2} and [Fe (H_{2} O)_{6}] Cl_{2} respectively are$ (1) $t_{2 g}^{6} e_{g}^{0} and t_{2 g}^{6} e_{g}^{0}$ (2) $t_{2 g}^{6} e_{g}^{0} and t_{2 g}^{4} e_{g}^{2}$ (3) $t_{2 g}^{4} e_{g}^{2} and t_{2 g}^{4} e^{2}$ (4) $t_{2 g}^{4} e_{g}^{2} and t_{2 g}^{6} e_{g}^{0}$ 400. $The type of isomerism shown by the complex [C o C l_{2} / (e n)_{2}] is :$ (1) $Geometrical isomerism$ (2) $Linkage isomerism$ (3) $Ionization isomerism$ (4) $Coordination isomerism$ 401. $The correct structures of trans - (NiBr_{2} (PPh_{3})_{2}) andmeridonial- (Co (NH_{3})_{3} (NO_{2})_{3}), respectively, are$ (1) (2) (3) (4) 402. $Which among the following is used in the treatment of cancer?$ (1) $cis-[Pt (en)_{2} Cl_{2}$ (2) $cis- (PtCl_{2} (NH_{3})_{2})$ (3) $trans-[Pt (en)_{2} Cl_{2}]$ (4) $trans - (Pt (NH_{3})_{2} Cl_{2})$ 403. $Pick out the correct statement with respect to [M n (C N)_{6}]^{3 -}$ (1) $It is s p^{3} d^{2} hybridised and tetrahedral.$ (2) $It is d^{2} s p^{3} hybridised and octahedral.$ (3) $It is d s p^{2} hybridised and square planar.$ (4) $It is s p^{3} d^{2} hybridised and octahedral.$ 404. $The total number of possible isomers for the complex compound [Cu^{I I} (NH_{3})_{4}] [Pt^{I I} Cl_{4}] are$ (1) $5$ (2) $6$ (3) $3$ (4) $4$ 405. $The number of unpaired electrons in the complex ion [C o F_{6}]^{3 -} is (Atomic no. : Co = 27)$ (1) $2$ (2) $3$ (3) $4$ (4) $zero$ 406. $The magnetic moment is measured in Bohr Magneton (BM). Spin only magnetic moment of Fe in [Fe(H_{2} O)_{6}]^{3 +} and [Fe(CN)_{6}]^{3 -} complexes respectively is:$ (1) $6.92B.M. in both$ (2) $3.87B.M. andl.732B.M.$ (3) $5.92B.M. andl.732B.M.$ (4) $4.89 B. M. and 6.92 B. M$ 407. $Square planar complex of the type M_{AXBL} (where A, B, X and L are unidentate ligands) shows following set of isomers$ (1) $two cis and one trans$ (2) $two trans and one cis$ (3) $two cis and two trans$ (4) $three cis and one trans.$ 408. $Which complex compound will give four isomers?$ (1) $[F e (e n)_{3}] C l_{3}$ (2) $[C o (e n)_{2} C l_{2}] C l$ (3) $[F e (P P h_{3})_{3} N H_{3} C l B r] C l$ (4) $[Co (PP h_{3})_{3} Cl] C l_{3}$ 409. $Match the column-I with column-II. Column-I (A) (Fe (CN)_{6})^{3 -} (B) (Fe (H_{2} O)_{6})^{3 +} (C) (Fe (CN)_{6})^{4 -} (D) (Fe (H_{2} O)_{6})^{2 +} Column-II (I) 5.92 BM (II) 0 BM (III) 4.90 BM (IV) 1.73 BM Choose the correct answer from the options given below.$ (1) $(A)-(II); (B)-(IV); (C)-(III); (D)-(I)$ (2) $(A)-(I); (B)-(III); (C)-(IV); (D)-(II)$ (3) $(A)-(IV), (B)-(I); (C)-(II); (D)-(III)$ (4) $(A)-(IV), (B)-(II); (C)-(I); (D)-(III)$ 410. $Which one of the following complexes will have Δ_{o} = 0 and μ = 5.96 B.M?$ (1) $(FeF_{6})^{4 -}$ (2) $(Mn (SCN)_{6})^{4 -}$ (3) $(Co (NH_{3})_{6})^{3 +}$ (4) $(Fe (CN)_{6})^{4 -}$ 411. $Which kind of isomerism is exhibited by octahedral [Co(N H_{3})_{4} B r_{2}]Cl ?$ (1) $Geometrical and ionization$ (2) $Geometrical and optical$ (3) $Optical and ionization$ (4) $Geometrical only$ 412. $Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour ? (Atomic no. Cr = 24, Mn = 25, Fe = 26, Co = 27)$ (1) $[Co(CN)_{6}]^{3-}$ (2) $[Fe(CN)_{6}]^{3-}$ (3) $[Mn(CN)_{6}]^{3-}$ (4) $[Cr(CN)_{6}]^{3-}$ 413. $The correct decreasing order of trans-effect of the following species is$ (1) $N H_{3} > C N^{-} > B r^{-} > C_{6} H_{5}^{-}$ (2) $C N^{-} > C_{6} H_{5}^{-} > B r^{-} > N H_{3}$ (3) $B r^{-} > C N^{-} > N H_{3} > C_{6} H_{5}^{-}$ (4) $C N^{-} > B r^{-} > C_{6} H_{5}^{-} > N H_{3}$ 414. $Which of the following complexes exhibits the highest paramagnetic behaviour?$ (1) $[C o (o x)_{2} (O H)_{2}]^{-}$ (2) $[T i (N H_{3})_{6}]^{3 +}$ (3) $[V (g l y)_{2} (O H)_{2} (N H_{3})_{2}]^{+}$ (4) $[F e (e n) (b p y) (N H_{3})_{2}]^{2 +} where g l y = glycine, e n = ethylenediamine and b p y = bipyridylmoities. (At. nos. Ti= 22, V = 23, F e = 26, C o = 27)$ 415. $The coordination complex [Co (O H_{2})_{6}]^{2 +} has three unpaired electrons, which of the following statements are true? (i) The complex is octahedral. (ii) The complex is an outer orbital complex. (iii) The complex is diamagnetic.$ (1) $(i) and (iii) only$ (2) $(i), (ii) and (iii)$ (3) $(i) and (ii) only$ (4) $(ii) and (iii) only$ 416. $An octahedral complex having molecular composition Co \cdot 5N H_{3} \cdot Cl \cdot S O_{4} has two isomers A and B. The solution of A gives a white precipitate with AgN O_{3} solution and the solution of B gives white precipitate with BaC l_{2} solution. The type of isomerism exhibited by the complex is,$ (1) $Co-ordinate isomerism$ (2) $Ionization isomerism$ (3) $Geometrical isomerism$ (4) $Linkage isomerism$ 417. $1 mol of an octahedral metal complex with formula M C l_{3} \cdot 2 L on reaction with excess of A g N O_{3} gives 1 mol of AgCl. The denticity of Ligand L is ____. (Integer answer)$ 418. $An aqueous solution of N i C l_{2} was heated with excess sodium cyanide in presence of strong oxidizing agent to form [Ni (CN)_{6}]^{2 -} . The total change in number of unpaired electrons on metal centre is ___$ 419. $If the CFSE of [Ti (H_{2} O)_{6}]^{3 +} is - 96.0 kJ/mol, this complex will absorb maximum at wavelength ___ nm. (nearest integer) Assume Planck's constant (h) = 6.4 \times 1 0^{- 34} Js, speed of light (c) = 3.0 \times 1 0^{8} m/s and Avogadro's constant (N_{A}) = 6 \times 1 0^{23} /mol.$ 420. $If [Cu(H_{2} O)_{4}]^{2 +} absorbs a light of wavelength 600 nm for d-d transition, then the value of octahedral crystal field splitting energy for [Cu(H_{2} O)_{6}]^{2 +} will be___________x 1 0^{21} J. (Nearest Integer)(Given : h = 6.63 x 1 0^{- 34} Js and c = 3.08 x 1 0^{8} m s^{- 1})$