Question

An aqueous solution of X reacts with sodium chloride to form white precipitate of compound Y which is photosensitive. Y on exposure to sunlight, undergoes decomposition reaction to form metal present in compound X and pungent smelling yellowish green coloured gas . Identify X and Y and write down the chemical equations

Answer 1

Agbr+Nacl=Nabr+Agcl
X=Agbr
Y=Agcl