Coordination Compounds PYQs Set 13 (PDF)

Set 13 of 18 · Questions 361-390 of 522

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Mere Teacher · Previous Year Questions NEET Chemistry · Coordination Compounds · Set 13 (Q361-390)
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361. $Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour ? (Atomic no. Cr = 24, Mn = 25, Fe = 26, Co = 27)$ (1) $[Co(CN)_{6}]^{3-}$ (2) $[Fe(CN)_{6}]^{3-}$ (3) $[Mn(CN)_{6}]^{3-}$ (4) $[Cr(CN)_{6}]^{3-}$ 362. $The correct decreasing order of trans-effect of the following species is$ (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) $C N^{-} > B r^{-} > C_{6} H_{5}^{-} > N H_{3}$ 363. $Which of the following complexes exhibits the highest paramagnetic behaviour?$ (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) $[F e (e n) (b p y) (N H_{3})_{2}]^{2 +} where g l y = glycine, e n = ethylenediamine and b p y = bipyridylmoities. (At. nos. Ti= 22, V = 23, F e = 26, C o = 27)$ 364. $The coordination complex [Co (O H_{2})_{6}]^{2 +} has three unpaired electrons, which of the following statements are true? (i) The complex is octahedral. (ii) The complex is an outer orbital complex. (iii) The complex is diamagnetic.$ (1) $(i) and (iii) only$ (2) $(i), (ii) and (iii)$ (3) $(i) and (ii) only$ (4) $(ii) and (iii) only$ 365. $An octahedral complex having molecular composition Co \cdot 5N H_{3} \cdot Cl \cdot S O_{4} has two isomers A and B. The solution of A gives a white precipitate with AgN O_{3} solution and the solution of B gives white precipitate with BaC l_{2} solution. The type of isomerism exhibited by the complex is,$ (1) $Co-ordinate isomerism$ (2) $Ionization isomerism$ (3) $Geometrical isomerism$ (4) $Linkage isomerism$ 366. $The correct IUPAC name of cis-platin is$ (1) $diamminedichloridoplatinum(0)$ (2) $dichloridodiammineplatinum(IV)$ (3) $diamminedichloridoplatinum(II)$ (4) $diamminedichloridoplatinum(IV).$ 367. $Match List - I with List - II. List-I (Complex ion) (A) (Cr (NH_{3})_{6})^{3 +} (B) (NiCl_{4})^{2 -} (C) (CoF_{6})^{3 -} (D) (Ni (CN)_{4})^{2 -} List- II (Spin only magnetic moment in B.M.) (I) 4.90 (II) 3.87 (III) 0.0 (IV) 2.83 Choose the correct answer from the options given below :$ (1) $(A)-(II), (B)-(III), (C)-(I), (D)-(IV)$ (2) $(A)-(II), (B)-(IV), (C)-(I), (D)-(III)$ (3) $(A)-(I), (B)-(IV), (C)-(II), (D)-(III)$ (4) $(A)-(IV), (B)-(III), (C)-(I), (D)-(II)$ 368. $Identify the CORRECT set of details from the following:(A) (Co (NH_{3})_{6})^{3 +} : Inner orbital complex; d2sp3 hybridized(B) (MnCl_{6})^{3 -} : Outer orbital complex; sp^{3} d^{2} hybridized(C) (CoF_{6})^{3 -} : Outer orbital complex; d2sp3 hybridized(D) (FeF_{6})^{3 -} : Outer orbital complex; sp^{3} d^{2} hybridized(E) (Ni (CN)_{4})^{2 -} : Inner orbital complex; sp 3 hybridized Choose the correct answer from the options given below:$ (1) $(A) (C) & (E) Only$ (2) $(A) (B) & (D) Only$ (3) $(C) & (D) Only$ (4) $(A) (B), (C), (D) & (E)$ 369. $Given below are two statements : Statement I: (CoBr_{4})^{2 -} ion will absorb light of lower energy than (CoCl_{4})^{2 -} ion. Statement II : In (CoI_{4})^{2 -} ion, the energy separation between the two set of d-orbitals is more than (CoCl_{4})^{2 -} ion. In the light of the above statements, choose the correct answer from the options given below:$ (1) $Both Statement I and Statement II are false$ (2) $Both Statement I and Statement II are true$ (3) $Statement I is false but Statement II is true$ (4) $Statement I is true but Statement II is false$ 370. $Match List I with List II LIST - I (Complex ion) A. (Cr (H_{2} O)_{6})^{3 +} B. (Fe (H_{2} O)_{6})^{3 +} C. (Ni (H_{2} O)_{6})^{2 +} D. (V (H_{2} O)_{6})^{3 +} LIST - II (Electronic Configuration) I. t_{2}^{2} e_{g}^{0} II. t_{2} g^{3} eg^{0} III. t_{2} g^{3} e^{2} IV. t_{2} g^{6} e^{2} Choose the correct answer from the options given below :$ (1) $A-III, B-II, C-IV, D-I$ (2) $A-IV, B-I, C-II, D-III$ (3) $A-IV, B-III, C-I, D-II$ (4) $A-II, B-III, C-IV, D-I$ 371. $Iron carbonyl, F e (C O)_{5} is$ (1) $tetranuclear$ (2) $mononuclear$ (3) $trinuclear$ (4) $dinuclear$ 372. $Match the coordination number and type of hybridisation with distribution of hybrid orbitals in space based on valence bond theory. Coordinationnumber and type of hybrdisation Distribution of hybrid orbitals in space (A) 4, sp^{3} (I) Trigonal bipyramidal (B) 4, dsp^{2} (II) Octahedral (C) 5, sp^{3} d (III) Tetrahedral (D) 6, d^{2} sp^{3} (IV) Square planar Select the correct option$ (1) $(A)-(III); (B)-(IV); (C)-(I); (D)-(II)$ (2) $(A)-(IV); (B)-(I); (C)-(II); (D)-(III)$ (3) $(A)-(III), (B)-(I); (C)-(IV); (D)-(II)$ (4) $(A)-(II), (B)-(III); (C)-(IV); (D)-(I)$ 373. $Which complex compound is most stable?$ (1) $(Co (NH_{3})_{6})_{2} (SO_{4})_{3}$ (2) $(Co (NH_{3})_{4} (H_{2} O) Br) (NO_{3})_{2}$ (3) $(Co (NH_{3})_{3} (NO_{3})_{3})$ (4) $(CoCl_{2} (en)_{2}) NO_{3}$ 374. $Given below are two statements: Statement I: The number of paramagnetic species among (CoF_{6})^{3 -}, (TiF_{6})^{3 -}, V_{2} O_{5} and (Fe (CN)_{6})^{3 -} is 3 . Statement II: K_{4} (Fe (CN)_{6}) < K_{3} (Fe (CN)_{6}) < (Fe (H_{2} O)_{6}) SO_{4} \cdot H_{2} O < (Fe (H_{2} O)_{6}) Cl_{3} is the correct order in terms of number of unpaired electron(s) present in the complexes. In the light of the above statements, choose the correct answer from the options given below$ (1) $Both Statement I and Statement II are true$ (2) $Statement I is false but Statement II is true$ (3) $Both Statement I and Statement II are false$ (4) $Statement I is true but Statement II is false$ 375. $Match List - I with List - II. List - I (Complex) (A) (Co (en)_{2} Cl_{2}) Cl (B) [Pt (NH_{3})_{2} Cl (NO_{2})] (C) Hg (Co (SCN)_{4}) (D) [Mg (EDTA)]^{2 -} List - II (Primary valency and Secondary valency) (I) 3,6 (II) 3,4 (III) 2,6 (IV) 2,4 Choose the correct answer from the options given below:$ (1) $(A)-(I), (B)-(III), (C)-(II), (D)-(IV)$ (2) $(A)-(II), (B)-(III), (C)-(IV), (D)-(I)$ (3) $(A)-(I), (B)-(IV), (C)-(II), (D)-(III)$ (4) $(A)-(III), (B)-(I), (C)-(II), (D)-(IV)$ 376. $For octahedral Mn (II) and tetrahedral Ni (II) complexes, consider the following statements: (i) both the complexes can be high spin. (ii) Ni (II) complex can very rarely below spin. (iii) with strong field ligands, Mn (II) complexes can be low spin. (iv) aqueous solution of Mn (II) ions is yellow in colour. The correct statements are :$ (1) $(I), (III) and (IV) only$ (2) $(I) and (II) only$ (3) $(II), (III) and (IV) only$ (4) $(I), (II) and (III) only$ 377. $Identify the homoleptic complexes with odd number of d electrons in the central metal : (A) (FeO_{4})^{2 -} (B) (Fe (CN)_{6})^{3 -} (C) (Fe (CN)_{5} NO)^{2 -} (D) (CoCl_{4})^{2 -} (E) (Co (H_{2} O)_{3} F_{3}) Choose the correct answer from the options given below :$ (1) $(A), (B) and (D) only$ (2) $(C) and (E) only$ (3) $(B) and (D) only$ (4) $(A), (C) and (E) only$ 378. $Wilkinson catalyst is :$ (1) $[(Et3P)3ΙrCl]$ (2) $[(E t_{3} P)_{3} RhCl]$ (3) $((Ph_{3} P)_{3} RhCl) (Et = C_{2} H_{5})$ (4) $[(Ph3P)3ΙrCl]$ 379. $Consider a mixture ' X ' which is made by dissolving 0.4 mol of (Co (NH_{3})_{5} SO_{4}) Br and 0.4 mol of (Co (NH_{3})_{5} Br) SO_{4} in water to make 4 L of solution. When 2 L of mixture ' X ' is allowed to react with excess of AgNO_{3}, it forms precipitate ' Y^{’} . The rest 2 L of mixture ' X ' reacts with excess BaCl_{2} to form precipitate ' Z '. Which of the following statements is CORRECT?$ (1) $0.1 mol of ' Y^{’} is formed.$ (2) $0.2 mol of ' Z^{’}' is formed.$ (3) $0.4 mol of ' Z^{’}' is formed.$ (4) $' Y^{’} is BaSO_{4} and ' Z ' is AgBr .$ 380. $Given below are two statements: Statement I : Among ((Cu (NH_{3})_{4})^{2 +}, (Ni (en)_{3}))^{2 +}, (Ni (NH_{3})_{6})^{2 +} and (Mn (H_{2} O)_{6})^{2 +}, (Mn (H_{2} O)_{6})^{2 +} has the maximum number of unpaired electrons. Statement II : The number of pairs among ((NiCl_{4})^{2 -}, (Ni (CO)_{4})), ((NiCl_{4})^{2 -}, (Ni (CN)_{4})^{2 -}) and ((Ni (CO)_{4}), (Ni (CN)_{4})^{2 -}) that contain only diamagnetic species is two. In the light of the above statements, choose the correct answer from the options given below: Statement I is true but Statement II is false Both Statement I and Statement II are false$ (1) $Statement I is true but Statement II is false$ (2) $Both Statement I and Statement II are false$ (3) $Both Statement I and Statement II are true$ (4) $Statement I is false but Statement II is true$ 381. $Match the following List-I (Complex) A. (Co (NH_{3})_{6})^{3 +} B. (CoF_{6})^{3 -} C. (Ni (CO)_{4}) D. (Fe (CN)_{6})^{3 -} List-II (electronic configuration of metal/ion) I. t_{2 g}^{5} e_{g}^{0} II. t_{2 g}^{6} e_{g}^{0} III. t_{2 g}^{4} e_{g}^{2} IV. t_{2}^{4} e^{6} The correct answer is$ (1) $A-II, B-III, C-IV, D-I$ (2) $A-III, B-IV, C-II, D-I$ (3) $A-IV, B-III, C-I, D-II$ (4) $A-II, B-I, C-IV, D-III$ 382. $Identify neutral ligand from following.$ (1) $Ammine$ (2) $Nitrato$ (3) $Cyano$ (4) $Chloro$ 383. $Match the column I with column II and select the correct option. Column I (Pair of isomers): (p) (I) (Co (NH_{3})_{6}) (Cr (CN)_{6}), (II) (Cr (NH_{3})_{6}) (Co (CN)_{6}) (q) (III) (PtCl_{2} (NH_{3})_{4}) Br_{2}, (IV) (PtBr_{2} (NH_{3})_{4}) Cl_{2} (r) (V) (Co (SCN) (NH_{3})_{5}) Cl_{2}, (VI) ((Co (NCS) (NH_{3})_{5}) Cl_{2}) (s) (VII) (Cr (H_{2} O)_{6}) Cl_{3}, (VIII) (CrCl_{2} (H_{2} O)_{4}) Cl \cdot 2 H_{2} O Column II (Type of isomerism): 1. Ionisation 2. Hydrate 3. Coordination 4. Geometrical 5. Linkage$ (1) $p - 4, q - 1, r - 5, s - 2$ (2) $p-1,q-3,r-2,s-5$ (3) $p - 3, q - 1, r - 5, s - 2$ (4) $p-1, q-3,r-5,s-2$ 384. $Match each coordination compound in List-I with an appropriate pair of characteristics from List-II and select the correct answer using the code given below the lists. {en = H_{2} N C H_{2} C H_{2} N H_{2}; atomic numbers : Ti = 22; Cr = 24; Cp = 27; Pt = 78} List-I P. [Cr(N H_{3})_{4} C l_{2})Cl] Q. [Ti (H_{2} O)_{5} Cl] (N O_{3})_{2} R. [Pt(en)(N H_{3})Cl] N O_{3} S. [Co (N H_{3})_{4} (N O_{3})_{2}] N O_{3} List-II 1. Paramagnetic and exhibits ionisation isomerism 2. Diamagentic and exhibits cis-trans isomerism 3. Paramagentic and exhibits cis-trans isomerism 4. Diamagentic and exhibits ionisation isomerism Code : P Q R S$ (1) $4 2 3 1$ (2) $3 1 4 2$ (3) $2 1 3 4$ (4) $1 3 4 2$ 385. $If a didentate ligand ethane-1,2-diamine is progressively added in the molar ratio en : Ni : : 1 : 1, 2 : 1, 3 : 1 to (Ni (H_{2} O)_{6})^{2 +} aq. solution, following co-ordination entities are formed. I. (Ni (H_{2} O)_{4} en)^{2 +}_{(aq)} - pale blue II. (Ni (H_{2} O)_{2} (en)_{2})^{2 +}_{(aq)} - blue/purple III. (Ni (en)_{3})^{2 *} (aq) - violet The wavelength in nm of light absorbed in case of I and III are respectively$ (1) $475 nm and 310 nm$ (2) $300 nm and 475 nm$ (3) $310 nm and 500 nm$ (4) $600 nm and 535 nm .$ 386. $Match List-I with List-II : List I (A) (Co (NH_{3})_{6}) (Cr (CN)_{6}) (B) (Co (NH_{3})_{3} (NO_{2})_{3}) (C) (Cr (H_{2} O)_{6}) Cl_{3} (D) cis - [CrCl (_{2} (ox)_{2})^{3 -} List II (i) Linkage isomerism (ii) Solvate isomerism (iii) Co-ordination isomerism (iv) Optical isomerisma Choose the correct answer from the options given below:$ (1) $(A) - (iii), (B) - (i), (C) - (ii), (D) - (iv)$ (2) $(A) - (iv), (B) - (ii), (C) - (iii), (D) - (i)$ (3) $(A) - (ii), (B) - (i), (C) - (iii), (D) - (iv)$ (4) $(A) - (i), (B) - (ii), (C) - (iii), (D) - (iv)$ 387. $A ligand can also be regarded as$ (1) $Lewis base$ (2) $Brönsted acid$ (3) $Lewis acid$ (4) $Brönsted base.$ 388. $(Ni (PPh_{3})_{2} Cl_{2}) is a paramagnetic complex. Identify the INCORRECT statements about this complex.(A) The complex exhibits geometrical isomerism.(B) The complex is white in colour.(C) The calculated spin-only magnetic moment of the complex is 2.84 BM .(D) The calculated CFSE (Crystal Field Stabilization Energy) of Ni in this complex is - 0.8 Δ_{o} .(E) The geometrical arrangement of ligands in this complex is similar to that in Ni (CO)_{4} . Choose the correct answer from the options given below:$ (1) $(C), (D) and (E) Only$ (2) $(C) and (D) Only$ (3) $(A), (B) and (D) Only$ (4) $(A) and (B) Only$ 389. $The wavelength of light absorbed for the following complexes are in the order (Co (NH_{3})_{6})^{3 +}; (I) (Co (H_{2} O)_{6})^{3 +}; (II) (Co (CN)_{6})^{3 -} (III); (Co (NH_{3})_{5} (H_{2} O))^{3 +} (IV); (CoF_{6})^{3 -} (V)$ (1) $(III) < (I) < (IV) < (V) < (II)$ (2) $(III) < (I) < (IV) < (II) < (V)$ (3) $(III) < (I) < (II) < (IV) < (V)$ (4) $(III) < (IV) < (I) < (II) < (V)$ 390. $The correct statements from following are: A. The strength of anionic ligands can be explained by crystal field theory. B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds. C. The hybridization involved in formation of (Ni (CN)_{4})^{2 -} complex is dsp^{2} . D. The number of possible isomer(s) of cis- (PtCl_{2} (en)_{2})^{2 +} is one Choose the correct answer from the options given below:$ (1) $A, D only$ (2) $A, C only$ (3) $B, D only$ (4) $B, C only$