a black precipitate is obtained. The black precipitate dissolves completely in hot HNO3. On adding a few

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A white crystalline substance dissolves in water. On passing H2S in this solution, a black precipitate is obtained. The black precipitate dissolves completely in hot HNO3. On adding a few
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Dec
A white crystalline substance dissolves in water. On passing H2S in this solution, a black precipitate is obtained. The black precipitate dissolves completely in hot HNO3. On adding a few a black precipitate is obtained. The black precipitate dissolves completely in hot HNO3. On adding a few A white crystalline substance dissolves in water. On [...]
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