Coordination Compounds PYQs Set 7 (PDF)

Set 7 of 18 · Questions 181-210 of 522

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Mere Teacher · Previous Year Questions NEET Chemistry · Coordination Compounds · Set 7 (Q181-210)
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181. $The type of hybridization and the magnetic property of (MnCl_{6})^{3 -} are,$ (1) $s p^{3} d^{2}, paramagnetic with four unpaired electrons.$ (2) $d^{2} s p^{3}, paramagnetic with four unpaired electrons.$ (3) $sp^{3} d^{2}, paramagnetic with two unpaired electrons.$ (4) $d^{2} sp^{3}, paramagnetic with two unpaired electrons.$ 182. $The correct charge on and co-ordination number of ' Fe' in K_{3} (Fe (CN)_{6}) is$ (1) $+ 2, 4$ (2) $+ 3, 6$ (3) $+ 2, 6$ (4) $+ 3, 3$ 183. $[Pd (F) (Cl) (Br) (I)]^{2 -} has n number of geometrical isomers. Then, the spin-only magnetic moment and crystal field stabilisation energy [CFSE] of [Fe (CN)_{6}]^{n - 6} respectively, are$ (1) $1.73B.M and - 2 Δ_{0}$ (2) $2.84B.M and - 1.6 Δ_{0}$ (3) $0 and - 1.6 Δ_{0}$ (4) $5.92B.M and - 2.4 Δ_{0}$ 184. $What kind of isomerism exists between (Cr (H_{2} O)_{6}) Cl_{3} (violet) and (Cr (H_{2} O)_{5} Cl) Cl_{2} \cdot H_{2} O (greyish-green)?$ (1) $Coordination isomerism$ (2) $Solvate isomerism$ (3) $Linkage isomerism$ (4) $Ionization isomerism$ 185. $The number of species from the following that are involved in sp^{3} d^{2} hybridization is: (Co (NH_{3})_{6})^{3 +}, SF_{6}, (CrF_{6})^{3 -}, (CoF_{6})^{3 -}, (Mn (CN)_{6})^{3 -}, and (MnCl_{6})^{3 -}$ (1) $4$ (2) $3$ (3) $5$ (4) $6$ 186. $Homoleptic complex from the following complexes is:$ (1) $Triamminetriaquachromium (III) chloride$ (2) $Potassium trioxalatoaluminate (III)$ (3) $Diamminechloridonitrito - N- platinum(II)$ (4) $Pentaamminecarbonatocobalt (III) chloride$ 187. $In Wilkinson's catalyst, the hybridization of central metal ion and its shape are respectively :$ (1) $s p^{3} d, trigonal bipyramidal$ (2) $d^{2} s p^{3}, octahedral$ (3) $d s p^{2}, square planar$ (4) $s p^{3}, tetrahedral$ 188. $The geometries of the ammonia complexes of N i^{2 +}, P t^{2 +} and Z n^{2 +}, respectively, are$ (1) $octahedral, square planar and tetrahedral$ (2) $square planar, octahedral and tetrahedral$ (3) $tetrahedral, square planar and octahedral$ (4) $octahedral, tetrahedral and square planar$ 189. $When Ethane-1,2-diamine is added progressively to an aqueous solution of Nickel (II) chloride, the sequence of colour change observed will be:$ (1) $Violet \to Blue \to Pale Blue \to Green$ (2) $Pale Blue \to Blue \to Green \to Violet$ (3) $Green \to Pale Blue \to Blue \to Violet$ (4) $Pale Blue \to Blue \to Violet \to Green$ 190. $Given below are two statements : Statement I: [N i (C N) 4]^{2 -} is square planar and diamagnetic complex, with d s p^{2} hybridization for Ni but [Ni (C O)_{4}] is tetrahedral. paramagnetic and with s p^{3} -hybridication for Ni. Statement II: [N i C l_{4}]^{2 -} and [Ni (C O)_{4}] both have same d-electron configuration have same geometry and are paramagnetic. choose the correct answer form the options given below:$ (1) $Both Statement I and Statement II are true.$ (2) $Both Statement I and Statement II are false.$ (3) $Statement I is correct but statement II is false.$ (4) $Statement I is incorrect but statement II is true.$ 191. $The d ‐electron configurations of C r^{2 +}, M n^{2 +}, F e^{2 +} and C o^{2 +} are d^{4}, d^{5}, d^{6} and d^{7} respectively. Which one of the following will exhibit minimum paramagnetic behaviour?$ (1) $[M n (H_{2} O)_{6}]^{2 +}$ (2) $[F e (H_{2} O)_{6}]^{2 +}$ (3) $[C o (H_{2} O)_{6}]^{2 +}$ (4) $[C r (H_{2} O)_{6}]^{2 +} (At. nos. C r = 24, M n = 25, F e = 26, C o = 27)$ 192. $Among the following complexes (K-P), K_{3} [Fe (C N)_{6}] (K), [Co (N H_{3})_{6}] C l_{3} (L), N a_{3} [Co (o x a l a t e)_{3}] (M), [Ni (H_{2} O)_{6}] C l_{2} (N), K_{2} [Pt (C N)_{4}] (O) and [Zn (H_{2} O)_{6}] (N O_{3})_{2} (P) the diamagnetic complexes are :$ (1) $K, L, M, N$ (2) $K, M, O, P$ (3) $L, M, O, P$ (4) $L, M, N, O$ 193. $Correct increasing order for the wavelength of absorption in the visible region for the complexes of C o^{3 +} is :$ (1) $[Co(en)_{3}]^{3 +}, [Co(N H_{3})_{6}]^{3 +}, [Co(H_{2} O)_{6}]^{3 +}$ (2) $[Co(H_{2} O)_{6}]^{3 +}, [Co(en)_{3}]^{3 +}, [Co(N H_{3})_{6}]^{3 +}$ (3) $[Co(H_{2} O)_{6}]^{3 +}, [Co(N H_{3})_{6}]^{3 +}, [Co(en)_{3}]^{3 +}$ (4) $[Co(N H_{3})_{6}]^{3 +}, [Co(en)_{3}]^{3 +}, [Co(H_{2} O)_{6}]^{3 +}$ 194. $Match List I with List II List-I (Compound) A. Iodoform B. Carbon tetrachloride C. CFC D. DDT List - II (Uses) I. Fire extinguisher II. Insecticide III. Antiseptic IV. Refrigerants Choose the correct answer from the options given below:$ (1) $A-I, B-II, C-III, D-IV$ (2) $A-III, B-I, C-IV, D-II$ (3) $A-II, B-IV, C-I, D-III$ (4) $A-III, B-II, C-IV, D-I$ 195. $Transition metal complex with highest value of crystal field splitting (_{0}^{∆}) will be$ (1) $[C r (H_{2} O)_{6}]^{3 +}$ (2) $[M o (H_{2} O)_{6}]^{3 +}$ (3) $[F e (H_{2} O)_{6}]^{3 +}$ (4) $[O s (H_{2} O)_{6}]^{3 +}$ 196. $Given below are two statements : Statement I : Crystal Field Stabilization Energy (CFSE) of (Cr (H_{2} O)_{6})^{2 +} is greater than that of (Mn (H_{2} O)_{6})^{2 +} . Statement II: Potassium ferricyanide has a greater spin-only magnetic moment than sodium ferrocyanide. In the light of the above statements, choose the correct answer from the options given below :$ (1) $Both Statement I and Statement II are true$ (2) $Both Statement I and Statement II are false$ (3) $Statement I is true but Statement II is false$ (4) $Statement I is false but Statement II is true$ 197. $Which of the following complexes is used to be as an anticancer agent?.$ (1) $m er - [C o (N H_{3})_{3} C l_{3}]$ (2) $c i s - [P tC l_{2} (N H_{3})_{2}]$ (3) $c i s - K_{2} [P tC l_{2} B r_{2}]$ (4) $N a_{2} C o C l_{4}$ 198. $The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet colour in non-luminous flame under hot condition in borax bead test is$ (1) $Mn^{2 +}$ (2) $Cr^{3 +}$ (3) $Ni^{2 +}$ (4) $Ti^{3 +}$ 199. $The complex that has highest crystal field splitting energy (Δ) is:$ (1) $(Co (NH_{3})_{5} (H_{2} O)) Cl_{3}$ (2) $K_{2} (CoCl_{4})$ (3) $(Co (NH_{3})_{5} Cl) Cl_{2}$ (4) $K_{3} (Co (CN)_{6})$ 200. $Give the IUPAC name of (Pt (NH_{3})_{4}) (PlCl_{4}) is$ (1) $tetraammineplatinate(II)tetrachloridoplatinum(II)$ (2) $tetraammineplatinate (0) tetrachlorido platinum(IV)$ (3) $tetraammineplatinum(II)tetrachloridoplatinate(II)$ (4) $tetraammineplatinum (0) tetrachloridoplatinum(IV).$ 201. $The correct statement on the isomerism associated with the following complex ions, (A) [Ni(H_{2} O)_{5} N H_{3}]^{2 +}, (B) [Ni(H_{2} O)_{4} (N H_{3})_{2}]^{2 +} and (C) [Ni(H_{2} O)_{3} (N H_{3})_{3}]^{2 +} is :$ (1) $(A) and (B) show only geometrical isomerism.$ (2) $(B) and (C) show geometrical and optical isomerism$ (3) $(B) and (C) show only geometrical isomerism$ (4) $(A) and (B) show geometrical and optical isomerism$ 202. $What is coordination number of central metal ion in (Fe (C_{2} O_{4})_{3})^{3 -} ?$ (1) $3$ (2) $5$ (3) $4$ (4) $6$ 203. $Identify the use of EDTA from following.$ (1) $treatment of lead poisoning$ (2) $electroplating of noble metals$ (3) $treatment for cancer$ (4) $transmission of nerve signals.$ 204. $Which of the following is correct related to the colours of TiCl_{3} (X) (Ti (H_{2} O)_{6}) Cl_{3} (Y) .$ (1) $X = Colourless Y = Colouored$ (2) $X = Colouored Y = Colouored$ (3) $X = Colourless Y = Colourless$ (4) $X = Colouored Y = Colourless$ 205. $The oxidation number of central metal in (Pt (NH_{3})_{2} Cl (NO_{2})) and (CoCl_{2} (en)_{2})^{\oplus} respectively, are$ (1) $+ 2 : + 1$ (2) $+ 2 : + 2$ (3) $+ 2 : + 3$ (4) $+ 3 : + 2$ 206. $Coordination number of Ni in N i (C_{2} O_{4})_{3}]^{4 -} is$ (1) $3$ (2) $6$ (3) $4$ (4) $2$ 207. $The mismatched combinations are (A) Chlorophyll-Co (B) Water hardness-EDTA (C) Photography-[Ag(CN)_{2}]^{-} (D) Wilkinson catalyst- [(P h_{3} P)_{3} RhCl] (E) Chelating ligand-D-Penicillamine Choose the correct answer from the options given below.$ (1) $A, C and E only$ (2) $A and C only$ (3) $A and E only$ (4) $D and E only$ 208. $The correct increasing order of spin-only magnetic moment values of the complex ions (MnBr_{4})^{2 -} (A), (Cu (H_{2} O)_{6})^{2 +} (B), (Ni (CN)_{4})^{2 -} (C) and (Ni (H_{2} O)_{6})^{2 +} (D) is:$ (1) $(C) = (D) < (B) < (A)$ (2) $(C) < (B) < (D) < (A)$ (3) $(A) = (B) < (D) < (C)$ (4) $(A) = (B) < (C) < (D)$ 209. $The theory that can completely/properly explain the nature of bonding in [Ni (C O)_{4}] is:$ (1) $Crystal field theory$ (2) $Werner's theory$ (3) $Molecular orbital theory$ (4) $Valence bond theory$ 210. $Which of the following types of isomerism is exhibited by (Co (NH_{3})_{5} (NO_{2})) (NO_{3})_{2} i. Optical ii. Linkage iii. Ionization iv. Coordination$ (1) $ii, iii only$ (2) $i, ii, iii only$ (3) $i, iii only$ (4) $ii, iv only$