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 greenish coloured gas. identify x and y and write tye decomposition reaction​

Answer 1

Answer:

X is silver nitrate ( AgNO3 ).

And Y is silver chloride ( AgCl )

The reaction is photochemical decomposition reaction.

(X) (Y)

AgNO3 (aq) + NaCl (s) = NaNO3+AgCl (white ppt.)

silver silver

nitrate chloride

2AgCl____sunlight____2Ag (s) + Cl2 (g)

(thermal decomposition reaction)

Explanation :

Silver nitrate aqueous solution reacts with sodium chloride to give a white precipitate, silver chloride which is photosensitive.Silver chloride on exposure to sunlight turns grey due to decomposition into silver and pungent smelling gas i.e. chlorine.It is photochemical decomposition reaction.

Answer 2

Answer:

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