Q. A precipitate of $AgCl$ is formed when equal volumes following are mixed [ $Ks$ of $AgCl =10^{-10}$ ]

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$10^{-5} M\, AgNO _{3}$ and $10^{-6} M\, HCl$

$10^{-4} M\, AgNO _{3}$ and $10^{-7} M\, HCl$

$10^{-6} M\, AgNO _{3}$ and $10^{-6} M\, HCl$

$10^{-5} M\, AgNO _{3}$ and $10^{-4} M\, HCl$

Solution:

Precipitation takes place only when the product of ionic concentrations exceed the solubility product

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