Coordination Compounds PYQs Set 20 (PDF)

Set 20 of 20 · Questions 571-596 of 596

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Mere Teacher · Previous Year Questions JEE Main Chemistry · Coordination Compounds · Set 20 (Q571-596)
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571. $The isomer(s) of [Co(N H_{3})_{4} C l_{2}] that has/have a Cl-Co-Cl angle of 90°, is/are:$ (1) $cis and trans$ (2) $cis only$ (3) $meridional and trans$ (4) $trans only$ 572. $The number of isomers possible for the octahedral complex (CoCl_{2} (en) (NH_{3})_{2})^{+} is$ (1) $two$ (2) $three$ (3) $no isomer$ (4) $four isomers.$ 573. $The existence of two different coloured complexes with the composition of [Co (NH_{3})_{4} Cl_{2}]^{+} is due to$ (1) $linkage isomerism$ (2) $geometrical isomerism$ (3) $coordination isomerism$ (4) $ionization isomerism.$ 574. $Which of the following complexes will show geometrical isomerism ?$ (1) $Potassium tris(oxalato)chromate(III)$ (2) $Pentaaquachlorochromium(III)chloride$ (3) $Aquachlorobis(ethylenediamine)cobalt(II) chloride$ (4) $Potassium amminetrichloroplatinate(II)$ 575. $Chiral complex from the following is Here en = ethylene diamine$ (1) $cis-[P tC l_{2} (en)_{2}]^{2 +}$ (2) $trans - [P tC l_{2} (en)_{2}]^{2 +}$ (3) $cis - [R C 1_{2} (N H_{3})_{2}]$ (4) $trans - [Co(N H_{3})_{4} C 1_{2}]^{+}$ 576. $Match List - I with List - II. List - I Reaction (A) TiCl_{4} (B) (FeO_{4})^{2 -} (C) (FeCl_{4})^{-} (D) (CoCl_{4})^{2 -} List - II Type of redox reaction (I) e^{2}, t_{2}^{0} (II) e^{4}, t_{2}^{3} (III) e^{0}, t_{2}^{0} (IV) e^{2}, t_{2}^{3} Choose the correct answer from the options given below :$ (1) $(A)-(III), (B)-(IV), (C)-(II), (D)-(I)$ (2) $(A)-(IV), (B)-(III), (C)-(I), (D)-(II)$ (3) $(A)-(III), (B)-(I), (C)-(IV), (D)-(II)$ (4) $(A)-(I), (B)-(III), (C)-(IV), (D)-(II)$ 577. $White precipitate of AgCl dissolves in aqueous ammonia solution due to formation of:$ (1) $[Ag (N H_{3})_{4}] C l_{2}$ (2) $[Ag (C l)_{2} (N H_{3})_{2}]$ (3) $[Ag (N H_{3})_{2}]Cl$ (4) $[Ag(N H_{3})Cl]Cl$ 578. $Which of the following will give a pair of enantiomorphs ? (en = NH_{2} CH_{2} CH_{2} NH_{2})$ (1) $[Pt(NH3)4][PtCl6]$ (2) $[Co(NH3)4Cl2]NO2$ (3) $[Cr(NH3)6][Co(CN)6]$ (4) $[Co(en)2Cl2]Cl$ 579. $Which of the following expected to exhibit optical isomerism ? (en = ethylenediamine)$ (1) $cis-[Pt(NH3)2Cl2]$ (2) $cis-[Co(en)2Cl2]+$ (3) $trans-[Co(en)2Cl2]+$ (4) $trans-[Pt(NH3)2Cl2]$ 580. $In which of the following pairs, both the complexes show optical isomerism ?$ (1) $cis-[Cr(C2O4)2Cl2]3- , cis-[Co(NH3)4Cl2]$ (2) $[Co(en)3] Cl3 ,cis-[Co(en)2Cl2]Cl$ (3) $[PtCl(dien)Cl] , [NiCl2Br2]2-$ (4) $[Co(NO3)3(NH3)3], cis-[Pt(en)2Cl2]$ 581. $In which one of the following metal carbonyls, CO forms a bridge between metal atoms?$ (1) $(Co_{2} (CO)_{8})$ (2) $(Mn_{2} (CO)_{10})$ (3) $(Os_{3} (CO)_{12})$ (4) $(Ru_{3} (CO)_{12})$ 582. $The number of geometrical isomers of the complex [Co (NO_{2})_{3} (NH_{3})_{3}] is$ (1) $4$ (2) $0$ (3) $2$ (4) $3$ 583. $Among the given complexes that possess "CO" ligand bridges are (Co_{2} (CO)_{8}) (Fe_{3} (CO)_{12}) I II (Mn_{2} (CO)_{10}) (Fe_{2} (CO)_{9}) III IV$ (1) $I, II and III$ (2) $II, III and IV$ (3) $I, II and IV$ (4) $I, III and IV$ 584. $Cobalt chloride when dissolved in water forms pink colored complex X which has octahedral geometry. This solution on treating with cone HC1 forms deep blue complex, Y which has a Z geometry. X, Y and Z, respectively, are$ (1) $X=[Co(H_{2} O)_{6}]^{2 +}, Y=[C o C l_{4}]^{2 -}, Z=Tetrahedral$ (2) $X= [C o (H_{2} O_{6})]^{2 +}, Y= [C o C I_{6}]^{3 -}, Z=Octahedral$ (3) $X=[Co(H_{2} O)_{6}]^{3 +}, Y=[C o C l_{6}]^{3 -}, Z=Octahedral$ (4) $X= [C o (H_{2} O)_{4} C l_{2}]^{+}, Y= [C o C l_{4}]^{2 -}, Z=Tetrahedral$ 585. $For the crystal field splitting in octahedral complexes,$ (1) $the energy of the e_{g} orbitals will decrease by (3/5) Δ_{0} and that of the t_{2 d} will increase by (2/5) Δ_{0}$ (2) $the energy of the e orbitals will increase by (3/5) Δ_{0} and that of the t_{2 g} will decrease by (2/5) Δ_{o}$ (3) $the energy of the e_{g} orbitals will increase by (3/5) Δ_{0} and that of the t_{2 g} will increase by (2/5) Δ_{0}$ (4) $the energy of the e_{g} orbitals will decrease by (3/5) Δ_{0} and that of t_{2 g} will decrease by (2/5) Δ_{0} .$ 586. $The correct order of the stoichiometries of A g C l formed when A g N O_{3} in excess is treated with the complexes: C o C l_{3} .6 N H_{3}, C o C l_{3} .5 N H_{3}, C o C l_{3} .4 N H_{3} respectively is$ (1) $3 A g C l, 1 A g C l, 2 A g C l$ (2) $3 A g C l, 2 A g C l, 1 A g C l$ (3) $2 A g C l, 3 A g C l, 2 A g C l$ (4) $1 A g C l, 3 A g C l, 2 A g C l$ 587. $The formula of dichlorobis(urea)copper(II) is$ (1) $[C u O = C (N H_{2})_{2} C l] C l$ (2) $(CuCl_{2} (O = C (NH_{2})_{2})_{2})$ (3) $[C u O = C (N H_{2})_{2} C l_{2}$ (4) $[C u C l_{2} {O = C (N H_{2})_{2}}_{2}]$ 588. $Trien is$ (1) $Hexa dentate, Mono anionic$ (2) $tetradentate, neutral$ (3) $tetradentate, dianion$ (4) $Mono dentate, anion$ 589. $Iron carbonyl, Fe (C O)_{5} is :$ (1) $tetranuclear$ (2) $dinuclear$ (3) $trinuclear$ (4) $mononuclear$ 590. $Among [N i (C O)_{4}], [N i (C N)_{4}]^{2 -}, [N i C l_{4}]^{2 -} species, the hybridisation states at the Ni atom are, respectively [Atomic number of N i = 28]$ (1) $s p^{3}, d s p^{2}, d s p^{2}$ (2) $s p^{3}, d s p^{2}, s p^{3}$ (3) $s p^{3}, s p^{3}, d s p^{2}$ (4) $d s p^{2}, s p^{3}, s p^{3}$ 591. $[C o_{2} (C O)_{8}] displays :$ (1) $one Co-Co bond, four terminal CO and four bridging CO$ (2) $one Co-Co bond, six terminal CO and two bridging CO$ (3) $no Co-Co bond, four terminal CO and four bridging CO$ (4) $no Co-Co bond, six terminal CO and two bridging CO$ 592. $The correct IUPAC name for [CrF_{2} (en)_{2}] Cl is$ (1) $chlorodifluoridoethylenediaminechromium (III) chloride$ (2) $difluoridobis (ethylene diamine)chromium (III) chloride$ (3) $difluorobis‐(ethylene diamine) chromium (III) chloride$ (4) $chlorodifluoridobis (ethylene diamine) chromium (III)$ 593. $A correct statement is$ (1) $(Co (NH_{3})_{6})^{2 +} is paramagnetic$ (2) $(MnBr_{4})^{2 -} is tetrahedral$ (3) $(CoBr_{2} (en)_{2})^{-} exhibits linkage isomerism$ (4) $(Ni (NH_{3})_{6})^{2 +} is an inner orbital complex.$ 594. $In the cobalt-carbonyl complex: [C o_{2} (C O)_{8}], number of Co-Co bonds is "X" and terminal CO ligands is "Y". X + Y =____$ 595. $E D T A^{4-} is ethylenediaminetetraacetate ion. The total number of N-Co-O bond angles in [C o (E D T A)]^{1-} complex ion is :$ 596. $Spin only magnetic moment of [M n B r_{6}]^{4 -} is____ B.M. (round off to the closest integer)$