Coordination Compounds PYQs Set 4 (PDF)

Set 4 of 18 · Questions 91-120 of 522

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Mere Teacher · Previous Year Questions NEET Chemistry · Coordination Compounds · Set 4 (Q91-120)
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91. $The increasing order of field strength of ligands is$ (1) $NH_{3} < H_{2} O < Cl^{-} < CO < CN^{-}$ (2) $Cl^{-} < H_{2} O < NH_{3} < CN^{-} < CO$ (3) $Cl^{-} < CO < CN^{-} < H_{2} O < NH_{3}$ (4) $CN^{-} < CO < NH_{3} < Cl^{-} < H_{2} O$ 92. $The IUPAC name of [Ni (N H_{3})_{4}] [N i C l_{4}] is :$ (1) $Tetrachloronickel(II) tetraamminenickel (II)$ (2) $Tetraamminenickel(II) tetrachloronickel (II)$ (3) $Tetraamminenickel(II) tetrachloronickelate (II)$ (4) $Tetraamminenickel(II) tetrachloronickelate (0)$ 93. $Match List - I with List - II. List - I (Transition metal ion) (A) Ti^{3 +} (B) V^{2 +} (C) Ni^{2 +} (D) Sc^{3 +} List - II (Spin only magnetic moment (B.M.)) (I) 3.87 (II) 0.00 (III) 1.73 (IV) 2.84 Choose the correct answer from the options given below :$ (1) $(A) - (III), (B) - (I), (C) - (IV), (D) - (II)$ (2) $(A) -(III), (B) - (I), (C) - (II), (D) - (IV)$ (3) $(A) -(IV), (B) - (II), (C) - (III), (D) - (I)$ (4) $(A) - (II), (B) - (IV), (C) - (I), (D) - (III)$ 94. $The degenerate orbitals of (Cr (H_{2} O)_{6})^{3 +} are:$ (1) $d_{xz} and dyz$ (2) $d_{yz} and d z^{2}$ (3) $d z^{2} and d_{xz}$ (4) $d x^{2} - y^{2} and d_{xy}$ 95. $Identify the incorrect match from the following:$ (1) $(Cr (H_{2} O)_{6}) Br_{2} - Paramagnetic$ (2) $Na_{4} (Fe (CN)_{6}) - Diamagnetic$ (3) $(Ni (CO)_{4}) - Paramagnetic$ (4) $Na_{2} (NiCl_{4}) - Paramagnetic$ 96. $The primary and secondary valencies of cobalt respectively in [Co (N H_{3})_{5} Cl] C l_{2} are :$ (1) $3 and 5$ (2) $2 and 6$ (3) $2 and 8$ (4) $3 and 6$ 97. $In metal carbonyl having general formula M (C O)_{x} where M = metal x = 4 and the metal is bonded to$ (1) $carbon and oxygen$ (2) $C \equiv O$ (3) $oxygen$ (4) $carbon$ 98. $The IUPAC name for the complex [Co (N H_{3})_{5} (N O_{2})] C l_{2} is :$ (1) $Nitrito-N-pentaamminecobalt(III) chloride$ (2) $Nitrito-N-pentaamminecobalt(II) chloride$ (3) $Pentaamminenitrito-N-cobalt(II) chloride$ (4) $Pentaamminenitrito-N-cobalt(III) chloride$ 99. $The correct statements among I to III are (I) Valence bond theory cannot explain the color exhibited by transition metal complexes. (II) Valence bond theory can predict quantitatively the magnetic properties of transition metal complexes. (III) Valence bond theory cannot distinguish ligands as weak and strong field ones.$ (1) $(I) and (III) Only$ (2) $(I) and (II) Only$ (3) $(I), (II) and (III)$ (4) $(II) and (III) Only$ 100. $The complexes [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the examples of which type of isomerism?$ (1) $Linkage isomerism$ (2) $Ionization isomerism$ (3) $Coordination isomerism$ (4) $Geometrical isomerism$ 101. $The highest value of the calculated spin only magnetic moment (in BM) among all the transition metal complexes is:$ (1) $5.92$ (2) $6.93$ (3) $3.87$ (4) $4.90$ 102. $Which one of the following complexes shows optical isomerism ? (en = ethylenediamine)$ (1) $cis[Co(en)2Cl2]Cl$ (2) $trans[Co(en)2Cl2]Cl$ (3) $[Co(NH3)4Cl2]Cl$ (4) $[Co(NH3)3Cl3]$ 103. $Copper sulphate dissolves in excess of KCN give ?$ (1) $[Cu(CN)4]2-$ (2) $Cu(CN)2$ (3) $CuCN$ (4) $[Cu(CN)4]3-$ 104. $The wavelengths of light absorbed by the complexes (Ni (H_{2} O)_{6})^{2 +}, (Ni (en)_{3})^{2 +}, (Ni (H_{2} O)_{4} en)^{2 +} are λ_{1}, λ_{2}, λ_{3} respectively. The correct order of wavelengths is$ (1) $λ_{1} > λ_{2} > λ_{3}$ (2) $λ_{3} > λ_{2} > λ_{1}$ (3) $λ_{1} > λ_{3} > λ_{2}$ (4) $λ_{2} > λ_{3} > λ_{1}^{\infty}$ 105. $To inhibit the growth of tumours, identify the compounds used from the following: (A) EDTA (B) Coordination Compounds of Ft (C) D - Penicillamine (D) Cis - Platin Choose the correct answer from the option given below:$ (1) $B and D Only$ (2) $C and D Only$ (3) $A and B Only$ (4) $A and C Only$ 106. $If N i^{2 +} is replaced by P t^{2 +} in the complex [N i C l_{2} B r_{2}]^{2 -}, which of the following properties are expected to get changed? (A) Geometry (B) Geometrical isomerism (C) Optical isomerism (D) Magnetic properties$ (1) $A and D$ (2) $A,B and C$ (3) $B and C$ (4) $A, B and D$ 107. $The coordination number and the oxidation state of the element ' M' in the complex (M (en)_{2} (C_{2} O_{4})) NO_{2} (where, en is ethane-1,2diamine) are respectively$ (1) $6 and 2$ (2) $4 and 2$ (3) $6 and 3$ (4) $4 and 3$ 108. $On treating a compound with warm dil. H_{2} S O_{4}, gas X is evolved which turns K_{2} Cr_{2} O_{7} paper acidified withdil. H_{2} S O_{4} to a green compound Y.X and Y respectively are :$ (1) $X = S O_{2}, Y = C r_{2} (S O_{4})_{3}$ (2) $X = S O_{2}, Y = C r_{2} O_{3}$ (3) $X = S O_{3}, Y = C r_{2} O_{3}$ (4) $X = SO_{3}, Y = C r_{2} (S O_{4})_{3}$ 109. $The co-ordination number of Fe and Co in the complex ions, (Fe (C_{2} O_{4})_{3})^{3 -} and (Co (SCN)_{4})^{2 -} are respectively$ (1) $6 and 8$ (2) $4 and 6$ (3) $6 and 4$ (4) $3 and 4$ 110. $The coordination environment of Ca^{2 +} ion in its complex with EDTA^{4 -} is :$ (1) $tetrahedral$ (2) $trigonal prismatic$ (3) $octahedral$ (4) $square planar$ 111. $The configurations of the complexes of manganese A, B respectively are t_{2 g}^{3} e_{g}^{1}, t_{2 g}^{4} e_{g}^{0} . Then A, B are$ (1) $(Mn (H_{2} O)_{6})^{2 +}, (Mn (CN)_{6})^{3 -}$ (2) $(Mn (H_{2} O)_{6})^{2 +}, (Mn (CN)_{6})^{4 -}$ (3) $(Mn (H_{2} O)_{6})^{3 +}, (Mn (CN)_{6})^{4 -}$ (4) $(Mn (H_{2} O)_{6})^{3 +}, (Mn (CN)_{6})^{3 -}$ 112. $The molecule in which hybrid MOs involve only one d - orbital of the central atom is$ (1) $XeF_{4}$ (2) $[Ni (CN)_{4}]^{2 -}$ (3) $[CrF_{6}]^{3 -}$ (4) $BrF_{5}$ 113. $Correct increasing order for the wavelengths of absorption in the visible region for the complexes of C o^{3 +} is$ (1) $[C o (H_{2} O)_{6}]^{3 +}, [C o (e n)_{3}]^{3 +}, [C o (N H_{3})_{6}]^{3 +}$ (2) $[C o (H_{2} O)_{6}]^{3 +}, [C o (N H_{3})_{6}]^{3 +}, [C o (e n)_{3}]^{3 +}$ (3) $[C o (N H_{3})_{6}]^{3 +}, [C o (e n)_{3}]^{3 +}, [C o (H_{2} O)_{6}]^{3 +}$ (4) $[C o (e n)_{3}]^{3 +}, [C o (N H_{3})_{6}]^{3 +}, [C o (H_{2} O)_{6}]^{3 +}$ 114. $The molecular formula of Wilkinson catalyst, used in hydrogenation of alkenes is$ (1) $Co (CO)_{8}$ (2) $((Ph_{3} P)_{3} RhCl)$ (3) $(Pt (NH_{3})_{2} Cl_{2})$ (4) $K (Ag (CN)_{2})$ 115. $Given below are two statements, one is labelled as assertion A and the other is labelled as Reason R. Assertion A: [CoCl(N H_{3})_{5}]^{2 +} absorbs at lower wavelength of light with respect to [Co(N H_{3})_{5} (H_{2} O)]^{3 +} Reason R: It is because the wavelength of light absorbed depends on the oxidation state of the metal ion. In the light of the above statements, choose the correct answer from the options given below:$ (1) $A is false but R is true$ (2) $A is true but R is false$ (3) $Both A and R are true and R is the correct explaination of A$ (4) $Both A and R are true and R is NOT the correct explaination of A$ 116. $The correct IUPAC name of K_{2} MnO_{4} is$ (1) $Potassium tetraoxopermanganate (VI)$ (2) $Potassium tetraoxidomanganate (VI)$ (3) $Dipotassium tetraoxidomanganate (VII)$ (4) $Potassium tetraoxidomanganese (VI)$ 117. $The coordination number of Th in K_{4} [Th (C_{2} O_{4})_{4} (O H_{2})_{2}] is (C_{2} O_{4}^{2}^{-} = O x a l a t o)$ (1) $14$ (2) $10$ (3) $6$ (4) $8$ 118. $Calculated magnetic moment value for Fe^{2 +} ion in BM is$ (1) $3.87$ (2) $4.90$ (3) $2.84$ (4) $1.73$ 119. $The correct statement among the following is:$ (1) $Ni (CO)_{4} and (Ni (CN)_{4})^{2 -} are diamagnetic and (NiCl_{4})^{2 -} is paramagnetic.$ (2) $Ni (CO)_{4} and (NiCl_{4})^{2 -} are diamagnetic and (Ni (CN)_{4})^{2 -} is paramagnetic.$ (3) $(Ni (CN)_{4})^{2 -} and (NiCl_{4})^{2 -} are diamagnetic and Ni (CO)_{4} is paramagnetic.$ (4) $Ni (CO)_{4} is diamagnetic and (NiCl_{4})^{2 -} and (Ni (CN)_{4})^{2 -} are paramagnetic.$ 120. $According to Werner's theory, the geometry of the complex is determined by$ (1) $only from the primary valence in space$ (2) $number and position of the primary valencies in space$ (3) $number and position of the secondary valencies in space$ (4) $only from the position of secondary valence in space.$