Coordination Compounds PYQs Set 7 (PDF)

Set 7 of 20 · Questions 181-210 of 596

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Mere Teacher · Previous Year Questions JEE Main Chemistry · Coordination Compounds · Set 7 (Q181-210)
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181. $Which of the following coordination entities should be expected to absorb light of lowest frequency$ (1) $[Cr(en)3]3+$ (2) $[CrCl6]3-$ (3) $[Cr(NH3)6]3+$ (4) $[Cr(CN)6]3-$ 182. $Identify anionic sphere complex from following.$ (1) $Hexaamminecobalt(III) chloride$ (2) $Potassium hexacyanoferrate(II)$ (3) $Tetraamminedichlorocobalt(III) ion$ (4) $Pentaamminechlorocobalt(III) sulphate$ 183. $The correct order of decreasing field strength of the below given ligands is NCS^{-} S^{2 -} en SCN^{-} I II III IV$ (1) $I > II > IV > III$ (2) $III > II > IV > I$ (3) $III > I > IV > II$ (4) $III > IV > I > II$ 184. $The pair in which both the species have the same magnetic moment (spin only) is$ (1) $[Cr (H_{2} O)_{6}]^{2 +} and [CoCl_{4}]^{2 -}$ (2) $[Co (OH)_{4}]^{2 -} and [Fe (NH_{3})_{6}]^{2 +}$ (3) $[Mn (H_{2} O)_{6}]^{2 +} and [Cr (H_{2} O)]^{2 +}$ (4) $[Cr (H_{2} O)_{6}]^{2 +} and [Fe (H_{2} O)_{6}]^{2 +}$ 185. $Among the following, the species having square planar geometry for central atom are : i. [XeF4] ii. SF4 iii. [NiCl4]2- iv. [PtCl4]2-$ (1) $i and iv$ (2) $i and ii$ (3) $ii and iii$ (4) $iii and iv$ 186. $The IUPAC name of K_{3} [Co (C_{2} O_{4})_{3}] is:$ (1) $Potassium tris(oxalato)cobaltate(III)$ (2) $Potassium tns(oxalato)cobalt(IIl)$ (3) $Potassium trioxalatocobalt(III)$ (4) $Potassium trioxalatocobaltate(III)$ 187. $The compound used in the treatment of lead poisoning is :$ (1) $D -penicillamine$ (2) $desferrioxime B$ (3) $Cis-platin$ (4) $EDTA$ 188. $Match List I with List II LIST-I Complex (A) Mg(N H_{4}) P O_{4} (B) K_{3} [Co(N O_{2})_{6}] (C) MnO(OH)_{2} (D) F e_{4} [Fe(CN)_{6}]_{3} LIST-II Colour (I) brown (II) white (III) yellow (IV) blue Choose the correct answer from the options given below:$ (1) $A-III, B-IV, C-II, D-I$ (2) $A-II, B-III, C-I, D-IV$ (3) $A-II, B-IV, C-I, D-III$ (4) $A-II, B-III, C-IV, D-I$ 189. $Which among the following will be named as dibromidobis (ethylene diamine) chromium (III) bromide?$ (1) $[Cr (e n)_{3}] B r_{3}$ (2) $[Cr(en)_{2} B r_{2}]Br$ (3) $[C r (e n) B r_{4}]^{-}$ (4) $[Cr(en) B r_{2}]Br$ 190. $The correct of order the stoichiometries of AgCl formed when A g N O_{3} in excess is treated with the complexes C o C l_{3} . 6 N H_{3}, C o C l_{3} . 5 N H_{3}, C o C l_{3} . 4 N H_{3} respectively is :$ (1) $1 AgCl, 3AgCl, 2AgCl$ (2) $3AgCl, 1 AgCl, 2AgCl$ (3) $3AgCl, 2AgCl, 1 AgCl$ (4) $2 AgCl, 3 AgCl, 1 AgCl$ 191. $The crystal field stabilization energy (CFSE) for [C o C l_{6}]^{4-} is 18000 c m^{-1}, the CFSE for [C o C l_{4}]^{2-} will be$ (1) $6000 c m^{-1}$ (2) $16000 c m^{-1}$ (3) $18000 c m^{-1}$ (4) $8000 c m^{-1}$ 192. $Which of the following complex exhibit facial meridional geometrical isomerism.$ (1) $Pt (N H_{3}) C l_{3}]^{-}$ (2) $[PtCl_{2} (N H_{3})_{2}]$ (3) $[Ni (CO)_{4}]$ (4) $[Co (NO_{2})_{3} (NH_{3})_{3}]$ 193. $Which of these statements about [Co(CN)6]3- is true ?$ (1) $[Co(CN)6]3- has four unpaired electrons and will be in a low-spin configuration.$ (2) $[Co(CN)6]3- has four unpaired electrons and will be in a high-spin configuration.$ (3) $[Co(CN)6]3- has no unpaired electrons and will be in a high-spin configuration.$ (4) $[Co(CN6)]3- has no unpaired electrons and will be in a low-spin configuration.$ 194. $The correct order of the complexes (Co (NH_{3})_{5} (H_{2} O))^{3 +} (A), (Co (NH_{3})_{6})^{3 +} (B), (Co (CN)_{6})^{3 -} (C) and (CoCl (NH_{3})_{5})^{2 +} (D) in terms of wavelength of light absorbed is$ (1) $D > C > B > A$ (2) $C > B > A > D$ (3) $D > A > B > C$ (4) $C > B > D > A$ 195. $In which of the following pairs, the outer most electronic configuration will be the same?$ (1) $Fe^{2 +} and Co^{+}$ (2) $Cr^{+} and Mn^{2 +}$ (3) $Ni^{2 +} and Cu^{+}$ (4) $V^{2 +} andCr+$ 196. $F e^{3 +} cation gives a prassian blue precipitate on addition of potassium ferrocyanide solution due to the formation of:$ (1) $[Fe(H_{2} O)_{6}]_{2} [Fe(CN)_{6}]$ (2) $F e_{2} [Fe(CN)_{6}]_{2}$ (3) $F e_{3} [Fe(OH)_{2} (CN)_{4}]_{2}$ (4) $F e_{4} [Fe(CN)_{6}]_{3}$ 197. $In ruby and emerald, the metal ion(s) present is/are$ (1) $Cr^{6 +}, Mn^{3 +}$ (2) $Cr^{3 +}$ (3) $Mn^{3 +}, Co^{3 +}$ (4) $Co^{3 +}$ 198. $Gadolinium (atomic number = 64) is a member of 4 f series. It's electronic configuration in +3 oxidation state is [Xe] 4 f^{7} . What is the ground state electronic configuration of gadolinium?$ (1) $[Xe] 4 f^{10}$ (2) $[Xe] 4 f^{8} 6 s^{2}$ (3) $[Xe] 4 f^{7} 5 d^{3}$ (4) $[Xe] 4 f^{7} 5 d^{1} 6 s^{2}$ 199. $Identify a formula of coordinate complex Bis(ethylenediamine)dithiocyanatoplatinum(IV).$ (1) $(Pt (en)_{2} (SCN)_{2})^{2 +}$ (2) $(Pt (en)_{2} (NCS)_{2})^{4 +}$ (3) $(Pt_{4} (NH_{3})_{2} (NCS)_{2})$ (4) $(Pt (NH_{3})_{4} (S_{2} CN))^{2 +}$ 200. $The type of hybridization and the magnetic property of (MnCl_{6})^{3 -} are,$ (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) $d^{2} sp^{3}, paramagnetic with two unpaired electrons.$ 201. $The correct charge on and co-ordination number of ' Fe' in K_{3} (Fe (CN)_{6}) is$ (1) $+ 2, 4$ (2) $+ 3, 6$ (3) $+ 2, 6$ (4) $+ 3, 3$ 202. $[Pd (F) (Cl) (Br) (I)]^{2 -} has n number of geometrical isomers. Then, the spin-only magnetic moment and crystal field stabilisation energy [CFSE] of [Fe (CN)_{6}]^{n - 6} respectively, are$ (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) $5.92B.M and - 2.4 Δ_{0}$ 203. $What kind of isomerism exists between (Cr (H_{2} O)_{6}) Cl_{3} (violet) and (Cr (H_{2} O)_{5} Cl) Cl_{2} \cdot H_{2} O (greyish-green)?$ (1) $Coordination isomerism$ (2) $Solvate isomerism$ (3) $Linkage isomerism$ (4) $Ionization isomerism$ 204. $The number of species from the following that are involved in sp^{3} d^{2} hybridization is: (Co (NH_{3})_{6})^{3 +}, SF_{6}, (CrF_{6})^{3 -}, (CoF_{6})^{3 -}, (Mn (CN)_{6})^{3 -}, and (MnCl_{6})^{3 -}$ (1) $4$ (2) $3$ (3) $5$ (4) $6$ 205. $Homoleptic complex from the following complexes is:$ (1) $Triamminetriaquachromium (III) chloride$ (2) $Potassium trioxalatoaluminate (III)$ (3) $Diamminechloridonitrito - N- platinum(II)$ (4) $Pentaamminecarbonatocobalt (III) chloride$ 206. $In Wilkinson's catalyst, the hybridization of central metal ion and its shape are respectively :$ (1) $s p^{3} d, trigonal bipyramidal$ (2) $d^{2} s p^{3}, octahedral$ (3) $d s p^{2}, square planar$ (4) $s p^{3}, tetrahedral$ 207. $The geometries of the ammonia complexes of N i^{2 +}, P t^{2 +} and Z n^{2 +}, respectively, are$ (1) $octahedral, square planar and tetrahedral$ (2) $square planar, octahedral and tetrahedral$ (3) $tetrahedral, square planar and octahedral$ (4) $octahedral, tetrahedral and square planar$ 208. $The volume (in mL) of 0.125 MAgN O_{3} required to quantitatively precipitate chloride ions in 0.3 g of [Co (NH_{3})_{6}] Cl_{3} is^{M} [Co (NH_{3})_{6}] Cl_{3} = 267.46 g / mol^{M} [AgNO_{3}] = 169.87 g / mol Multiply your answer with 100$ 209. $The observed magnetic moment of the complex [Mn (N C S)_{6})]^{x -} is 6. 06 BM. The numerical value of x is$ 210. $Considering that Δ_{0} > P, the magnetic moment (in MB of [Ru (H_{2} O)_{6}]^{2 +} would be$