An aqueous solution of a substance gives a white precipitate on treatment with dilute hydrochloric acid, which dissolved

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Q 2106712678.     An aqueous solution of a substance gives a white precipitate on treatment with dilute hydrochloric acid, which dissolved on heating. When hydrogen sulphide is passed through the hot acidic solution, a black precipitate is obtained. The substance is
A

`Hg_2^(2+) text(salt)`

B

`Cu^(2+) text(salt)`

C

`Ag^(+) text(salt)`

D

`Pb^(2+) text(salt)`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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