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NEET levelSingle correct optionDifficulty 1 of 3qc006

Dilute $HCl$ is added to a cold solution of $Pb (NO X_{3}) X_{2}$ . The precipitate formed is

Ayellow $PbCl X_{2}$ , soluble in boiling water
Bblack $PbCl X_{2}$ , soluble in excess $NH X_{3}$
Cwhite $PbCl X_{2}$ , which dissolves on heating with water
Dwhite $PbCl X_{2}$ , which is insoluble even in boiling water

Answer: C

Pb X^{2 +} + 2 Cl X^{-} PbCl X_{2}

gives a white precipitate. Its solubility rises sharply with temperature, so it dissolves in hot water and reappears on cooling.

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