Q)
(A)(a) Compare non transition and transition elements on the basis of their
(i) Variability of oxidation states (ii) stability of oxidation states.
(b) Give chemical reactions for the following observations:
(i) Potassium permanganate is a good oxidising agent in basic medium.
(ii) Inter convertibility of chromate ion and dichromate ion in aqueous solution depends Upon pH of the
solution. (iii) Potassium permanganate is thermally unstable at $513\;K$. (B) Why do the d - block elements exhibit a large number of oxidation states than f- block elements
1 Answer
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