Silver chloride turns black when it gets exposed to sunlight. Select the chemical reaction taking place resulting in this change.

Q. Identify the type of chemical reaction taking place when silver chloride turns black on exposure to sunlight.

Q. The correct order of the stoichiometries of $AgCl$ formed when $AgN{O}_3$ in excess is treated with the complexes : $CoC{l}_3.6N{H}_3,CoC{l}_3.5N{H}_3,CoC{l}_3.4N{H}_3$ respectively is:

Q. Sun glasses have small amount of $AgCl$ incorporated in the lenses. When light of appropriate wavelength is exposed it turns to gray colour to reduce the glare following the reactions:
$AgCl\stackrel{hv}{\to }Ag\left(\text{Gray}\right)+\frac{1}{2}C{l}_2$

If the heat of reaction for the decomposition of $AgCl$ is $248{\text{kJ mol}}^{-1}$. Find the wavelength needed to induce the desired process?

Q. $Ag|AgCl|C{l}^{-}\left(C_2\right)\parallel C{l}^{-}\left(C_1\right)|AgCl|Ag$ for this cell $\Delta G$ is negative if:

Q. If $A{g}^{+}+2N{H}_3\rightleftharpoons Ag(N{H}_3{)}_2^{+};K_1=1.7\times {10}^7$
$A{g}^{+}+C{l}^{-}\rightleftharpoons AgCl;K_2=5.4\times {10}^9$