(a) Which of the following reactions is/ are an endothermic reaction(s) where decomposition also happens? ● Respiration ● Heating of lead 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.

Question

Philoid · Accepted Answer

a. Heating of lead nitrate; and electrolysis of acidified water are examples of endothermic reaction(s) where decomposition also happens.

b. When silver chloride is exposed to light, it decomposes to form silver metal (grey) and chlorine gas.