Question

The order of metallic character of elements A, B, C and D is
D>A>C>B
(i) What is the order of their electronegative character?
(ii) What is the nature of oxide of B If oxide of A is amphoteric?

Answer 1

Answer:

what is the order of their electronegative character?

Answer 2

Explanation:

(i) As the metallic character decreases, the tendency to loose valence electrons also decreases. In other words the tendency to gain electron increases, so their electronegative character increases.

Order: D>A>C>B

(ii) Since the element B has least metallic character, so it will have maximum nonmetallic character in it. Non-metal oxides are acidic in nature, therefore oxide of B will be acidic in nature.