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Question
You are given the solution of lead nitrate. In order to obtain a yellow precipitate you should mix with it a solution of:
(a) potassium chloride
(b) potassium nitride
(c) potassium sulphide
(d) potassium iodide
Solution
(d) potassium iodide
Potassium iodide on reacting with lead nitrate gives yellow precipitate of lead iodide.
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