An aqueous solution of a substance gives a white percipitate on treatment with dil `HCl`, which dissole on heating. On passing `H_(2)S` in hot acidic solution a black percipitate is formed. The substance is:A. `Hg_(2)^(2+)` saltB. `Cu^(2+)` saltC. `Ag^(+)` saltD. `Pb^(2+)` salt

An aqueous solution of a substance gives a white percipitate on treatm

1.	An aqueous solution of a substance gives a white percipitate on treatment with dil `HCl`, which dissole on heating. On passing `H_(2)S` in hot acidic solution a black percipitate is formed. The substance is:A. `Hg_(2)^(2+)` saltB. `Cu^(2+)` saltC. `Ag^(+)` saltD. `Pb^(2+)` salt
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An aqueous solution of a substance gives a white percipitate on treatment with dil `HCl`, which dissole on heating. On passing `H_(2)S` in hot acidic solution a black percipitate is formed. The substance is:A. `Hg_(2)^(2+)` saltB. `Cu^(2+)` saltC. `Ag^(+)` saltD. `Pb^(2+)` salt

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