In the Solvay ammonia process,what causes the precipitation of sodium bicarbonate?

$A$ litre of solution is saturated with $AgCl$. To this solution if $1.0 \times 10^{-4} \ mol$ of solid $NaCl$ is added,what will be the $[Ag^{+}]$ compared to the original concentration,assuming no volume change?

Explain the effect on the resulting solution when $0.05 \ M$ acetate ion is added to a $0.05 \ M$ acetic acid solution.

The presence of $NH_4Cl$ in the test solution while precipitating group $III-A$ hydroxides (in qualitative inorganic analysis) helps in:

Consider the nitration of benzene using mixed conc. $H_2SO_4$ and $HNO_3$. If a large amount of $KHSO_4$ is added to the mixture,the rate of nitration will be

Write about the common ion effect.