NEET chemistry coordinate compounds sample,model,mock test papers

Coordinate Compound Mock Exam-20

Question No:1

A magnetic moment of 1.73 BM will be shown by one among the following

[A] [Cu(NH3 ) 4]2+
[B] [Ni(CN) 4]2-
[C] TiCl4
[D] [CoCl6]4-



Question No:2

Which of the following complexes is used to be as an anticancer agent

[A] Mer- [Co(NH3)3Cl3]
[B] Cis-[Ptcl2(NH3)2]
[C] Cis-K2[PtCl2Br2]
[D] Na2CoCl4



Question No:3

Among the following complexes, the one which shows zero crystal field stabilasation energy(CFSE) is

[A] [Mn(H2O6]3+
[B] [Fe(H2O6]3+
[C] [Co(H2O6]2+
[D] [Co(H2O6]3+



Question No:4

The name of complex ion [Fe(CN6)]3- is

[A] hexacyanoiron(III) ion
[B] (C) tricyanoferrate(III) ion
[C] (B) hexacyanitoferrate(III) ion
[D] hexacyanidoferrate(III) ion



Question No:5

The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4) Cl(Where, en is ethylenediamine) is

[A] 9
[B] 6
[C] 7
[D] 8



Question No:6

The hybridisation involved in complex [Ni(CN) 4]2- is(Atomic number of Ni=

[A] dsp24
[B] (C) d2sp2
[C] (D) d2sp3
[D] (B) sp3



Question No:7

Number of possible isomers for the complex [Co(en) 2Cl will be(en ethylendiamine)

[A] 2
[B] 1
[C] 3
[D] 4



Question No:8

Which of these statements about [Co(CN)]3-is true ?

[A] [Co(CN)6]3-has no unpaired electrons and will be in a low-spin configuration.
[B] [Co(CN)6]3-has four unpaired electrons and will be in a low-spin configuration.
[C] [Co(CN)6]3-has four unpaired electrons and will be in a low -spin configuration
[D] [Co(CN)6]3-has no unpaired electrons and will be in high -spin configuration.



Question No:9

Cobalt(III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25&8451; ?

[A] CoCl3.3NH3
[B] CoCl3.4NH3
[C] CoCl3.5NH3
[D] CoCl3.6NH3



Question No:10

John-Teller effects is not observed in high spin complexes of

[A] d7
[B] d8
[C] 84
[D] d9



Question No:11

The correct increasing order of trans-effect of the following species is

[A] NH 3 >CN= >Br- >C6 H5
[B] CN >C6 H5 – >Br- NH3
[C] Br CN NH3 C6 H5
[D] CN >Br >C6H 5>NH3



Question No:12

Which of the following pairs of d-orbitals will have electron density along the axis ?

[A] d z2 ,d xz
[B] dxz , dyz
[C] d2, d
[D] d xy , d x2-y2



Question No:13

Which of the following has longest C-O bond length?(Free C-O bond length in CO is 1.128A.)

[A] [Co(CO) 4]
[B] [Fe(CO) 4] 2-
[C] [Mn(CO) 6] +
[D] Ni(CO) 4



Question No:14

Pick out the correct statement with respect to [Mn(CN) 6]3+

[A] It is sp3d2 hybridised and octahedral 6
[B] It is sp3d2 hybridised and tetrahedral
[C] It is d2sp3hybridised and octahedral
[D] It is dsp2hybridised and square planar



Question No:15

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of CO3+ is

[A] [Co(en) 3] 3+ ,[Co(NH3 ) 6] 3+ [Co(H 2O 6)] 3+
[B] [Co(H2O) 6] 3+ ,[CO(en3)] 3+, [Co(NH3 ) 6] 3+
[C] [Co(H2O6)3] 3+ ,[Co(NH 3) 3+], [Co(NH3)6] 3+
[D] [Co(NH3)6] 3+ ,[Co(en3) 3+], [Co(H2O) 6] 3+