Question

2) A yellowish coloured compound 'X'is photosensitive
material. On exposure to Sunlight, it gives a greyish
substance 'y' and brown fumes of a gas 'Z'. Identify
Lx y z and write a chemical reaction. Mention its type.​

Answer 1

Answer:

I

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⚡Here is your answer⚡

1) Silver bromide on exposing to sun light,decomposes to silver metal and bromine gas.

Silver bromide--is a salt sensitive to sun light.

Bromine gas-- Brown colour gas.

Silver--is greyish colour metal

AgBr (s)---->Ag (s)+ Br2 (g)

So, X--AgBr

Y--Ag

Z--Bromine gas

Silver bromide can be obtained from the salt of silver that is silver nitrate can be used.

AgNO3 + KBr -->AgBr + KNO3

This is a displacement reaction where potassium displaces silver from AgNO3 and form AgBr.