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99 Percentile Qs Bank for JEE MainChemistryCoordination Compounds

In which of the following pair of complexes, the experimental magnetic moment and the geometric shapes are same?

Options

  1. AK MnO 4 and K 2 NiCl 4
  2. BK 2 Ni ( CN ) 4 and K 4 Ni ( CN ) 4
  3. CK 2 Ni ( CN ) 4 and Ni NH 3 2 Cl 2
  4. DK 3 Fe ( CN ) 6 and K 4 Fe ( CN ) 6

Correct answer

C. K 2 Ni ( CN ) 4 and Ni NH 3 2 Cl 2

Step-by-step solution

K 2 Ni ( CN ) 4 ⇒ Ni + 2 ⇒ 3 d 8 4 s 0 With cyanide, Ni + 2 form square planar and diamagnetic complex. K 2 Ni NH 3 2 Cl 2 → Diamagnetic and square planar complex.

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