An aqueous solution of a substance gives a white precipitate on treatment with dilute hydrochloric acid, which dissolves on heating. When hydrogen sulphide is passed through the hot acidic solution, a

Question

An aqueous solution of a substance gives a white precipitate on treatment with dilute hydrochloric acid, which dissolves on heating. When hydrogen sulphide is passed through the hot acidic solution, a black precipitate is obtained. The substance is a:

(A) 2 2 Hg salt
(B) Cu+2 salt
(C) Ag+ salt
(D) Pb+2 salt

Prashant Kotian · Accepted Answer

Correct answer:

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