NEET chemistry coordinate compounds mock,sample.model test papers

Coordinate Compound Mock Exam-16

Question No:1

The disodium salt of ethylene diamine tetracetic acid can be used to estimate the following ion(s) in the aqueous solution

[A] Mg2+ ion
[B] Ca2+ ion
[C] Na+ ion
[D] both Mg2+ and Ca2+



Question No:2

[Cu(NH3)4]2+ has hybridisation and magnetic moment

[A] sp3, 1.73 B.M.
[B] sp3d, 1.73 B.M.
[C] dsp2, 2.83 B.M.
[D] dsp2, 1.73 B.M.



Question No:3

[FeF6]3– has Fe atom —hybridised with unpaired —-electrons

[A] d2sp3, 4
[B] d2sp3, 5
[C] sp3d2, 5
[D] sp3d2, 3



Question No:4

Which of the following statements about Fe(CO)5is correct?

[A] It is paramagnetic and high spin complex
[B] It is diamagnetic and high spin complex
[C] It is diamagnetic and low spin complex
[D] It is paramagnetic and low spin complex



Question No:5

Which of the following statements is not true?

[A] MnCl42- ion has tetrahedral geometry and is paramagnetic
[B] [Mn(CN)6]2– ion has octahedral geometry and is paramagnetic
[C] [CuCl4]2– has square planar geometry and is paramagnetic
[D] [Ni(Ph3P) 2Br3] has trigonal bipyramidal geometry and one unpaired electron



Question No:6

The increasing order of magnetism of
(I) MnSO4.4H2O
(II) FeSO4.7H2O
(III) NiSO4.6H2O
(IV) CuSO4.5H2O

[A] I < II < III < IV
[B] IV < III < II < I
[C] III < IV < II [D] III < IV < I


Question No:7

Which of the following statements is correct?

[A] Geometrical isomerism is not observed in complexes of C.N.4 having tetrahedral geometry
[B] Square planar complexes generally do not show geometrical isomerism
[C] The square planar complex of general formulae Ma3b or Mab3 exhibits cis–trans isomerism
[D] The platinum glycinato complex, [Pt(Gly) 2] does not show geometrical isomerism



Question No:8

Geometrical isomerism can be shown by

[A] [Ag(NH3)(CN)]
[B] Na2 [Cd(NO2)4]
[C] [PtCl4I2]
[D] [Pt(NH3)3Cl][Au(CN)4]



Question No:9

[Co(en)3]3+ ion is expected to show

[A] two optically active isomers: d and l forms
[B] three optically active isomers: d, l and meso forms
[C] four optically active isomers: c is, d and l isomers and trans d and l isomers
[D] none of these



Question No:10

The number of geometrical isomers for octahedral [Co(NH3)2Cl4], square planar [AuCl2Br2] and [Pt(en)Cl2] are

[A] 2, 2, 2
[B] 2, 2, no isomerism
[C] 3, 2, 2
[D] 2, 3, no isomerism



Question No:11

Which of the following statements is not true about the complex ion [Cr(en) 2Cl2]+

[A] It has two geometrical isomers – c is and strans
[B] Both the c is and trans isomers display optical activity
[C] Only the c is isomer displays optical activity
[D] Only the c is isomer has non–super impossible mirror image



Question No:12

Other than the X–ray diffractions, how could be the following pairs of isomers be distinguished from one another by
[Cr(NH3)6] [Cr(NO2)6] and [Cr(NH3)4(NO2)2]
[Cr(NH3)2 (NO2)4]

[A] electrolysis of an aqueous solution
[B] measurement of molar conductance
[C] measuring magnetic moments
[D] observing their colours



Question No:13

How the isomeric complexes
[Co(NH3)6][Cr(NO2)6] and [Cr(NH3)6][Co(NO2)6] can be distinguished from one another by

[A] conductivity measurement
[B] measuring magnetic moments
[C] electrolysis of their aqueous solutions
[D] optical measurement



Question No:14

Which of the following polymerization isomers of the compound having empirical formula Cr(NH3)3(NO2)3has the lowest molecular mass?

[A] [Cr(NH3 )(NO2 ) 2 ] + [Cr(NH3)2 )(NO2 ) 4]
[B] [Cr(NH3 ) 6]3+ [Cr(NO2 ) 6]3–
[C] [Cr(NH3)5(NO2)]2+ [Cr(NH3)(NO2)5] 2–
[D] all



Question No:15

Octahedral complex of Ni(II) must be

[A] inner orbital
[B] outer orbital
[C] inner or outer orbital depending upon the strong or weak field ligand
[D] none of these