Coordination Compounds PYQs Set 13 (PDF)

Set 13 of 20 · Questions 361-390 of 596

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Mere Teacher · Previous Year Questions JEE Main Chemistry · Coordination Compounds · Set 13 (Q361-390)
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361. $The correct option(s) regarding the complex [Co(en)(N H_{3})_{3} (H_{2} O)]^{3 +} (en = H_{2} N C H_{2} C H_{2} N H_{2}) is (are)$ (1) $It has two geometrical isomers$ (2) $It will have three geometrical isomers if bidentate 'en' is replaced by two cyanide ligands$ (3) $It is paramagnetic$ (4) $It absorbs light at longer wavelength as compared to [Co(en) N H_{3})_{4}]^{3 +}$ 362. $The values of the crystal field stabilization energies for a high spin d^{6} metal ion in octahedral and tetrahedral fields, respectively,$ (1) $- 1.6 Δ_{0} and - 0.4 Δ_{t}$ (2) $- 2.4 Δ_{0} and - 0.64 Δ_{t}$ (3) $- 0.4 Δ_{0} and - 0.27 Δ_{t}$ (4) $- 0.4 Δ_{0} and - 0.6 Δ_{t}$ 363. $The spin only magnetic moment of (MnBr_{4})^{x -} is 5.9 BM . The geometry of the complex and x respectively are$ (1) $tetrahedral, 1$ (2) $square planar, 1$ (3) $square planar, 2$ (4) $tetrahedral, 2$ 364. $Match the LIST-I with LIST-II LIST-I (Molecules/ion) LIST-II (Hybridization of central atom) A. PF_{5} I dsp^{2} B. SF_{6} II s p^{3} d C. Ni (CO)_{4} III sp^{3} d^{2} D. (PtCl_{4})^{2 -} IV sp^{3} Choose the correct answer from the options given below:$ (1) $A-IV, B-I, C-II, D-III$ (2) $A-III, B-I, C-IV, D-II$ (3) $A-II, B-III, C-IV, D-I$ (4) $A-I, B-II, C-III, D-IV$ 365. $Which one of the following species responds to a external magnetic field?$ (1) $[F e (H_{2} O)_{6}]^{3 +}$ (2) $[N i (C N)_{4}]^{2 -}$ (3) $[C o (C N)_{6}]^{3 -}$ (4) $[N i (C O)_{4}]$ 366. $Jahn-Teller effect is not observed in high spin complexes of$ (1) $d9$ (2) $d7$ (3) $d8$ (4) $d4$ 367. $Identify the coordination complexes in which the central metal ion has d^{4} configuration. (A) (FeO_{4})^{2 -} (B) (Mn (CN)_{6})^{3 -} (C) (Fe (CN)_{6})^{3 -} (D) (E) (NiF_{6})^{2 -} Choose the correct answer from the options given below:$ (1) $(B), (C) and (D) only$ (2) $(C) and (E) only$ (3) $(B) and (D) only$ (4) $(A), (B) and (E) only$ 368. $Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE)value. Complexes: [C o F_{6}]^{3 -}, [Co(H_{2} O)_{6}]^{2 +}, [Co(N H_{3})_{6}]^{3 +} and [Co(en)_{3}]^{3 +} A B C D Choose the correctoption :$ (1) $A < B < C < D$ (2) $B < A < C < D$ (3) $B < C < D < A$ (4) $C < D < B < A$ 369. $Which of the following ligands is expected to be bidentate?.$ (1) $C H_{3} N H_{2}$ (2) $C H_{3} C \equiv N$ (3) $B r$ (4) $C_{2} O_{4}^{2 -}$ 370. $Number of stereoisomers possible for the complexes, (CrCl_{3} (py)_{3}) and (CrCl_{2} (ox)_{2})^{3 -} are respectively (py = pyridine, ox = oxalate)$ (1) $3 & 3$ (2) $2&3$ (3) $1 & 2$ (4) $2 & 2$ 371. $The coordination number and oxidation state of Cr in K_{3} C r (C_{2} O_{4})_{3} are respectively$ (1) $3 and + 3$ (2) $3 and 0$ (3) $6 and + 3$ (4) $4 and + 2$ 372. $Which one of the following metal complexes is most stable?$ (1) $[C o (e n) (N H_{3})_{4}] C l_{2}$ (2) $(Co (en)_{3}) Cl_{2}$ (3) $[C o (e n)_{2} (N H_{3})_{2}] C l_{2}$ (4) $[C o (N H_{3})_{6}] C l_{2}$ 373. $Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is$ (1) $[M n (H_{2} O)_{6}]^{3 +}$ (2) $[F e (H_{2} O)_{6}]^{3 +}$ (3) $[C o (H_{2} O)_{6}]^{2 +}$ (4) $[C o (H_{2} O)_{6}]^{3 +}$ 374. $Cobalt (III) chloride forms several octahedral complexes with ammonia. Which ofthe following will not give test for chloride ions with silver nitrate at 2 5^{o} C ?.$ (1) $C o C l_{3} \cdot 5 N H_{3}$ (2) $C o C l_{3} \cdot 6 N H_{3}$ (3) $C o C l_{3} \cdot 3 N H_{3}$ (4) $C o C l_{3} \cdot 4 N H_{3}$ 375. $The geometry and magnetic behaviour of the complex [Ni (C O)_{4}] are :$ (1) $square planar geometry and diamagnetic$ (2) $tetrahedral geometry and paramagnetic$ (3) $Square planar geometry and paramagnetic$ (4) $tetrahedral geometry and diamagnetic$ 376. $Both [Ni(CO)_{4}] and [Ni(CN)_{4}]^{2-} are diamagnetic. The hybridisation of nickel in these complexes, respectively, are :$ (1) $s p^{3}, s p^{3}$ (2) $s p^{3}, d s p^{2}$ (3) $d s p^{2}, s p^{3}$ (4) $d s p^{2}, s p^{2}$ 377. $The electronic spectrum of [Ti (H_{2} O)_{6}]^{3 +} shows a single broad peak with a maximum at 20, 300 cm^{- 1} . The crystal field stabilization energy (CFSE) of the complex ion, in kJ mol^{- 1}, is (1 kJmol^{- 1} = 83.7 cm^{- 1})$ (1) $145.5$ (2) $97$ (3) $242.5$ (4) $83.7$ 378. $Ethylene diaminetetraacetate (EDTA) ion is:$ (1) $Unidentate ligand$ (2) $Bidentate ligand with two " N " donor atoms$ (3) $Tridentate.ligand with three " N " donor atoms$ (4) $Hexadentate ligand with four "O" and two " N " donor atoms$ 379. $A magnetic moment at 1.73 BM will be shown by one among of the following$ (1) $T i C l_{4}$ (2) $[C o C l_{6}]^{4 -}$ (3) $[C u (N H_{3})_{4}]^{2 +}$ (4) $[N i (C N)_{4}]^{2 -}$ 380. $Statement-1 : The geometrical isomers of the complex [M(N H_{3})_{4} C l_{2}] are optically inactive, and Statement-2 : Both geometrical isomers of the complex [M(N H_{3})_{4} C l_{2}] possess axis of symmetry.$ (1) $Statement-1 is true, statement-2 is true; statement-2 is a correct explanation for statement-1.$ (2) $Statement-1 is true, statement-2 is true; statement-2 is NOT a correct explanation for statement-1.$ (3) $Statement-1 is true, Statement-2 is false.$ (4) $Statement-1 is false, Statement-2 is true.$ 381. $C r^{+ 3} in aquous medium form green coloured complex with N H_{3} ligand. How many ligand associated$ (1) $3$ (2) $4$ (3) $5$ (4) $6$ 382. $The number of optical isomers possible for [Cr(C_{2} O_{4})_{3}]^{3 -} is ____.$ 383. $In the complex acetylbromidodicarbonylbis(triethylphosphine)iron(II), the number of Fe-C bond(s) is$ 384. $The spin-only magnetic moment value of an octahedral complex among C o C l_{3} . 4 N H_{3}, N i C l_{2} . 6 H_{2} O and P tC l_{4} .2HCl, which upon reaction with excess of A g N 0_{3} gives 2 moles of AgCl is ________B.M. (Nearest Integer)$ 385. $The volume (in mL) of 0.1 M A g N O_{3} required for complete precipitation of chloride ions present in 20 mL of 0. 01 M solution of [Cr (H_{2} O)_{5} Cl] C 1_{2} as silver chloride is_______$ 386. $Among the complex ions, [C o (N H 2- C H 2- C H 2- N H 2) 2 C l 2]^{+}, [C r C l 2 (C 2 O 4) 2]^{3-}, [F e (H 2 O) 4 (O H) 2]^{+}, [F e (N H 3) 2 (C N) 4]^{-}, [C o (N H 2- C H 2- C H 2- N H 2) 2 (N H 3) C l]^{2 +} and [C o (N H 3) 4 (H 2 O) C l]^{2 +}, the number of complex ion(s) that show(s) cis-trans isomerism is :$ 387. $The d-electronic configuration of [C o C l_{4}]^{2 -} in tetrahedral crystal field is e^{m} t_{2}^{n} . Sum of^{‘} m^{’} and 'number of unpaired electrons is_______.$ 388. $The homoleptic and octahedral complex of C o^{2 +} and H_{2} O has unpaired electron(s) in the t_{2 g} set of orbitals.$ 389. $The complex of Ni^{2 +} ion and dimethyl glyoxime contains number of Hydrogen (H) atoms.$ 390. $The difference between spin only magnetic moment values of [Co (H_{2} 0)_{6}] C l_{2} and [Cr (H_{2} O)_{6}] C l_{3} is___________.$