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?
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Answer:
what is the order of their electronegative character?
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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.
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