Question

A white precipitate will be formed if we add common salt solution to ______.

Options

• Ba(NO₃)₂ solution

• KNO₃ solution

• AgNO₃ solution

• Mg(NO₃)₂ solution

Answer 1

A white precipitate will be formed if we add common salt solution to AgNO₃ solution.

Explanation:

Common salt is sodium chloride (NaCl). When it is mixed with a silver nitrate (AgNO₃) solution, a double displacement reaction occurs. The silver ions (Ag⁺) combine with chlorine ions (Cl⁻) to form an insoluble white precipitate of silver chloride (AgCl).

\[\ce{AgNO3_{(aq)} + NaCl_{(aq)} -> AgCl_{(s)}\downarrow + NaNO3_{(aq)}}\]