How can 0.1 g samples of the two white solids, lead (II) chloride and silver chloride, be distinguished from one another?

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Add 10 mL of cold water to each. The silver chloride will dissolve.

Add 10 mL of hot water to each. The lead(II) chloride will dissolve.

Add 10 mL of sodium chloride to each solution, The lead(II) chloride will become warm and release chlorine gas.

Add 10 mL of zinc chloride solution to each. The silver chloride will change to metallic silver.

answer is B.

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Detailed Solution

Lead chloride and silver chloride differ significantly in that silver chloride is insoluble even in hot water, but lead chloride is very weakly soluble in cold water. As a result, add 10 mL of hot water to each, and the lead (II) chloride will dissolve

Hence the correct option is B

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