Question

30
a Which of the following reactions is/ are an endothermic reaction(s) where
decomposition also happens?
Respiration
Heating of Icad nitrate
Decomposition of organic matter
Electrolysis of acidified water
b. Silver chloride when kept in the open turns grey Illustrate this with a
balanced chemical equation​

Answer 1

Answer:

a. Heating of lead nitrate; and electrolysis of acidified water

b.

Sunlight

2AgCl(s) 2Ag(s) + Cl2 (g)

(No deduction for not mentioning state of reactants and products.)

Answer 2

Answer:

Heating of lead nitrate and electrolysis of acidified water

2AgCl(s) 2Ag(s) + Cl2 (g)

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