Question

A substance X that is light yellow exposed in sunlight it's colour change into grey that's why and gas z is formed . identify x y and z and also write the balance chemical equation and identify type of chemical reaction

Answer 1

Substance is AgCl (Silver Chloride ).

AgCl --------> Ag + Cl2

Hence X = AgCl

Y = Ag

Z = Cl2 (Chloride gas)

Thanks

Answer 2

x=agcl. silver chloride
y=ag.silver
z=cl2.chlorine
2agcl----->2ag+cl2
this is decomposition reaction