NEET chemistry coordinate compounds sample,mock,grand exam papers

Coordinate Compound Mock Exam-23

Question No:1

Select the correct statement.

[A] Geometrical isomer may differ in dipole moment and visible/UV spectra.
[B] Complexes of the type [Ma3b3] can also have facial(fac) and meridional(mer) isomer.
[C] No optical isomer exists for the complex trans-[Co(en) 2Cl2]+.
[D] All of these.



Question No:2

Which of the following coordination compounds would exhibit optical isomerism?

[A] pentamminenitrocobalt(III) iodide
[B] diamminedichloroplatinum(II)
[C] trans-dicyanobis(ethylenediamine) chromium(III) chloride
[D] tris-(ethylendiamine) cobalt(III) bromide



Question No:3

Trien is

[A] Hexa dentate, Mono anionic
[B] tetradentate, neutral
[C] tetradentate, dianion
[D] Mono dentate, anion



Question No:4

Which of the following is diamagnetic complex

[A] [Co(OX) 3] 3–, [Fe(CN) 6] 3–
[B] [Co(Ox) 3] 3–, [FeF6] 3–
[C] [Fe(Ox3)3–, [FeF ] 3–
[D] [Fe(CN) 6]3-, [CoF6 ] 3–



Question No:5

Which of the following can be reduce easily

[A] V(CO) 6
[B] Mo(CO) 6
[C] [Co(CO) 4]
[D] Fe(CO) 5



Question No:6

The Hybridisation and magnetic behavior of complex [Ni(CO)4] is :

[A] dsp2, paramagnetic
[B] dsp2, diamagnetic
[C] sp3, paramagnetic
[D] sp3, diamagnetic



Question No:7

Which of the following complex is optically inactive?

[A] [RhCl(CO)(PPh3 )(NH3 )]
[B] [Fe(CO)] 3–
[C] [Fe(en)2Cl2]
[D] [Pd(en)2Cl2]



Question No:8

Correct increasing order for the wavelength of absorption in the visible region for the complexes of Co3+ is:

[A] [Co(CN6) 3- –, [Co(NH3) 6]3+, [Co(NH 3)5 (H2O)] 3+ [Co(NH 3) 5 Cl] +2
[B] [Co(CN)6]3–, [Co(NH 3)5 (H2 O)] 3+ [Co(NH 3)5 Cl] +2 [Co(NH3 ) 6] 3+
[C] [Co(NH3)6] 3+,[Co(CN) 6] 3–, [Co(NH3 ) 5 (H2 O)] 3+ [Co(NH3 ) 5Cl] +2
[D] [Co(NH3 ) 5Cl] +2 , [Co(NH3) 5 (H2 O)] 3+, [Co(NH3)6 ] 3+, [Co(CN) 6]



Question No:9

Which of the following complexes has maximum CFSE?

[A] K3[Fe(CN)6]
[B] K3[Co(Ox)3]
[C] K3[CoF6]
[D] K3[Co(CN)6]



Question No:10

In Fe(CO) 5Cr(CO)6, how many CO ligands can be replaced by NO?

[A] 3, 3
[B] 3, 6
[C] 6, 3
[D] 2, 4



Question No:11

Assertion : NF3 is a weaker ligand than N(CH3)3.
Reason : NF3 ionizes to give F ions in aqueous solution.

[A] If both the assertion and reason are true and reason explains the assertion
[B] If both the assertion and reason are true but reason does not explain the assertion
[C] If assertion is true but reason is false
[D] If assertion is false but reason in true
[E] Both Assertion and Reason are false



Question No:12

Assertion:The[Ni(en)3]Cl2(en = ethylenediamine) has lower stability than [Ni(NH3)6]Cl2.
Reason : In [Ni(en)3]Cl2the geometry of Ni is trigonal bipyramidal.

[A] If both the assertion and reason are true and reason explains the assertion
[B] If both the assertion and reason are true but reason does not explain the assertion
[C] If assertion is true but reason is false
[D] If assertion is false but reason in true
[E] Both Assertion and Reason are false



Question No:13

Assertion:[Co(NO2)3(NH3)3] does not show optical isomerism
Reason : It has a plane of symmetry.

[A] If both the assertion and reason are true and reason explains the assertion
[B] If both the assertion and reason are true but reason does not explain the assertion
[C] If assertion is true but reason is false
[D] If assertion is false but reason in true
[E] Both Assertion and Reason are false



Question No:14

Assertion : C – O bond in metal carbonyl is long.
Reason : There is delocalisation of electrons from filled d orbitals into the empty orbitals on the CO ligands.

[A] If both the assertion and reason are true and reason explains the assertion
[B] If both the assertion and reason are true but reason does not explain the assertion
[C] If assertion is true but reason is false
[D] If assertion is false but reason in true
[E] Both Assertion and Reason are false



Question No:15

Assertion : In high spin situation, configuration of d5 ions will be t3 2g e 2 g .
Reason : In high spin situation, pairing energy is less than crystal field energy.

[A] If both the assertion and reason are true and reason explains the assertion
[B] If both the assertion and reason are true but reason does not explain the assertion
[C] If assertion is true but reason is false
[D] If assertion is false but reason in true
[E] Both Assertion and Reason are false