JEE · NEET Previous Year Question

Two complexes (a) and (b) are violet and yellow coloured respectively. The incorrect statement regarding them is :

Topic: JEE PYQ

Answer: C. Full step-by-step solution below.

  1. AΔ0 value for (a) is less than that of (b).
  2. Bboth absorb energies corresponding to their complementary colors.
  3. CΔ0 values of (a) and (b) are calculated from the energies of violet and yellow light, respectively.
  4. Dboth are paramagnetic with three unpaired electrons.

Correct answer: C

Solution

(c) The crystal field splitting parameter can’t be measured by wavelength of yellow and violet colours for (a) and (b) respectively

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