Transition and InnerTransition Elements - Result Question 48

####49. The aqueous solution of the following salts will be coloured in case of

(1990, 1M)

(a) Zn(NO3)2

(b) LiNO3

(c) Co(NO3)2

(d) CrCl3 (e) potash alum

Show Answer

Answer:

Correct Answer: 49. (c, d)

Solution:

  1. Co2+(3d7) and Cr3+(3d3) have allowed d−d transition, therefore produces coloured aqueous solution.
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