Question

Ammonia will not form complex ions with
(a) Ag⁺ (b) Cd²⁺
(c) Cu²⁺ (d) Pb²⁺

Answer 1

Answer:

I think d option is correct

Answer 2

(d) Pb²⁺

Explanation:

Ammonia will not form complex ions with Pb²⁺. It will form a white precipitate and settle down rather than forming complex ions.

Ammonia will form complex ions with Cu²⁺, Ag²⁺ and Cd²⁺. They react to form soluble complexes with ammonia.

Option D is the answer.