When NH(4)Cl is added to a solution of N...

When `NH_(4)Cl` is added to a solution of `NH_(4)OH`,

The dissociation of `NH_(4)OH` increases

The concentration of `OH^(-)` ions increases

Dissociation of `NH_(4)Cl` decreases

The concentration of `OH^(-)` ions decreases

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Why a precipitate of Mg(OH)_2 is not formed when aqueous ammonia, NH_4 OH is added to a solution of MgCl_2 ?

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