Generally, transition elements and their salts

Question:

Generally, transition elements and their salts are coloured due to the presence

of unpaired electrons in metal ions. Which of the following compounds are

coloured?

(i) KMnO4

(ii) Ce (SO4)2

(iii) TiCl4

(iv) Cu2Cl2

Solution:

Option (i) KMnO4 and (ii) Ce (SO4)2 are the answers.

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