NEET
Practice Test 4
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Wavelength of red light is absorbed by the complex

  • Solution

    The compound which appears blue green,absorb redlight as blue-green is complementary to red colour.Here [Cu(NH3)4]2+appears blue-green, so it absorbsred colour.

The number of precipitable halide ions in the sample[Pt(NH3)Cl2Br]Cl will be

  • Solution

    [Pt(NH3)Cl2Br]Cl \(\rightleftharpoons\)[Pt(NH3)Cl2Br]+ + Cl-

    Cl- ion is precipitable.

The ligands in anti cancer drug cis-platin are:

  • Solution

    The ligands in cis-platin [PtCl2(NH3)2] are Cl and NH3.

The pair in which both species have same magnetic moment(spin only value) is :

  • Solution

Coordination isomerism is caused by the interchange of ligands between the

  • Solution

    Co-ordination isomerism is caused by the interchange of ligands between cation and anion complexes.

[Co(NH3)5NO2]Cl2 and [Co(NH3)5(ONO)]Cl2 are related to each other as

  • Solution


    Here more than one atom function as donor, as oxygen in first one and nitrogen in second, so they show linkage isomerism.

Which would exhibit co-ordination isomerism

Which of the following ions can exhibit optical isomerism–

  • Solution

    cis-[Co(en)2Cl2]+: cis-[M(aa)2b2] can show optical isomerism.

Which of the following compounds shows optical isomerism?

The correct order for the wavelength of absorption in the visible region is :

  • Solution

    For any metal cation, the magnitude of Δ0 depends upon the nature of ligand. Higher the value of Δ0, lower will be the wave length absorbed. Δ0 is crystal field stabilisation energy.

    The value of Δ0 for ligands varies as follows

    H2O < NH3 < \(NO_{2}^{-}\) So, the wavelength absorbed will vary in reverse orderor or \(NO_{2}^{-}\) < NH3 < H2O

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COORDINATION COMPOUNDS
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