NEET chemistry coordinate compounds mock.model,sample test papers

Coordinate Compound Mock Exam-17

Question No:1

For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of

[A] molar conductance
[B] optical activity
[C] magnetic moment
[D] dipole moment



Question No:2

Mn2+ forms a complex with Br ion. The magnetic moment of the complex is 5.92 B.M. What could not be the probable formula and geometry of the complex?

[A] [MnBr6] 4–, octahedral
[B] [MnBr4] 2–, square planar
[C] [MnBr4] 2–, tetrahedral
[D] [MnBr5] 3–, trigonal bipyramidal



Question No:3

How many isomers are possible for the complex ion [Cr(NH3)(OH) 2Cl3] 2–

[A] 2
[B] 3
[C] 4
[D] 5



Question No:4

A complex of certain metal has the magnetic moment of 4.91 BM whereas another complex of the same metal with same oxidation state has zero magnetic moment. The metal ion could be

[A] Co2+
[B] Mn2+
[C] Fe2+
[D] Fe3+



Question No:5

The tetrahedral [CoI4] 2– and square planar [PdBr4] 2– complex ions are respectively

[A] low spin, high spin
[B] high spin, low spin
[C] both low spin
[D] both high spin



Question No:6

Ethylenediaminetetraacetic acid(EDTA) is the antidote for lead poisoning. It is administered in the form of

[A] free acid
[B] sodium dihydrogen salt
[C] Calcium dihydrogen salt
[D] none of these



Question No:7

The species having tetrahedral shape is

[A] [PdCl ] 2–
[B] [Ni(CN)] 2–
[C] [Pd(CN)] 2–
[D] [NiCl ] 2–



Question No:8

Which one of the following species does not represent cationic species of vanadium formed in aqueous solution

[A] VO2+
[B] VO2+
[C] [V(H2O)6]3+
[D] VO22+



Question No:9

The EAN of metal atoms in Fe(NO) 2 (CO) 2 and Co2 (CO) 8 respectively are

[A] 34, 35
[B] 34, 36
[C] 36, 36
[D] 36, 35



Question No:10

Following Sedgwick’s rule of EAN, Co(CO)x will be

[A] Co2 (CO)4
[B] Co2 (CO)3
[C] Co2 (CO) 8
[D] CO2(CO) 10



Question No:11

On treatment of [Ni(NH3)4]2+ with concentrated HCl, two compounds I and II having the same formula, Ni(NH3)2Cl2are obtained, I can be converted into II by boiling with dilute HCl. A solution of I reacts with oxalic acid to form [Ni(NH3)2 (C2O4)] whereas II does not react. Point out the correct statement of the following

[A] I cis, II trans; both tetrahedral
[B] I cis, II trans; both square planar
[C] I trans, II cis; both tetrahedral
[D] I trans, II cis; both square planar



Question No:12

Coordination isomerism could be shown by

[A] [Ag(NH3)2][CuCl2]
[B] [Al(H2O)6][Co(CN)6]
[C] [Fe(NH3)6]2 [Pt(CN)6]3
[D] [Co(NH3)5Cl]SO4



Question No:13

Point out the correct statements amongst the following

[A] [Cu(CN)4]3– has tetrahedral geometry and dsp2hybridization
[B] [Ni(CN) 6]4– is octahedral and Ni has d2sp3hybridization
[C] [ZnBr4] 2– is tetrahedral and diamagnetic
[D] [Cr(NH3)6]3+ has octahedral geometry and sp3d2hybridization



Question No:14

Among the following ions which one has the highest paramagnetism

[A] [Cr(H 2 O) 6] 3+
[B] [Fe(H 2 O) 6] 2+
[C] [Cu(H2 O) 6] 2+
[D] [Zn((H2 O) 6 ] 2+



Question No:15

Among the following, the compound that is both paramagnetic and coloured is

[A] K2Cr2O7
[B] (NH4)2 [TiCl6]
[C] VOSO4
[D] K3[Cu(CN)4]