Test tubes $A$ and $B$ contain solutions of $NH_4Cl$ and $NaCl$ respectively. What happens if $Mg(OH)_2$ solution is added to both test tubes?
- APrecipitates will be formed in both $A$ and $B$.
- BThe solution in $A$ will remain clear,and precipitation will occur in $B$.
- CThe solution will remain clear in both $A$ and $B$.
- DNone of the above.
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