Which of the following compound(s) give white precipitate with silver nitrate solution?

$\mathrm{NaCl}$, $\mathrm{KSCN}$, $\mathrm{KCN}$ and ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ give white precipitate with silver nitrate solution.

$\mathrm{NaCl}$ produces White ppt. with silver nitrate because it is an ionic compound that produces a ${\mathrm{Cl}}^{-}$ ion, whereas ${\mathrm{CCl}}_4$ is a covalent complex and does not produce ${\mathrm{Cl}}^{-}$ ions.

Therefore, all the options are correct.