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NEETChemistryd and f Block Elements

Match the following: The correct answer is

Options

  1. A(a)
  2. B(b)
  3. C(c)
  4. D(d)

Correct answer

A. (a)

Step-by-step solution

V ⁴⁺, Ti ³⁺ and Ni ²⁺ having unpaired electrons in d -subshell. Therefore, there ions show d - d transition and form different colours. Ti ⁴⁺ does not have unpaired electrons therefore, it is colourless. array ll|ll & lons & & array c Colour ( d - d transition) array (A) & V ⁴⁺ & (IV) & Blue colour (B) & Ti ³⁺ & (II) & Purple (C) & Ti ⁴⁺ & (I) & Colourless (D) & Ni ²⁺ & (III) & Green array Thus, option (1) is correct.

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