An aqueous solution of a substance gives a white precipitate on treatment with dilute…
Chemistry · JEE Main · NTA Exams — Principles Related To Practical Chemistry
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:
- \(\mathrm{Hg}_{2}^{2+}{ }_{5 \mathrm{alt}}\)
- Cr2+ salt
- Ag+ salt
- Pb2+ salt
Answer
(D) Pb 2 + salt
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