Q: Which one of the following is not an exothermic reaction?
(a)Dissolution of calcium oxide in water
(b)Decomposition of vegetable matter into compost
(c)Decomposition of lead nitrate
(d)Dilution of sodium hydroxide with water
Correct Answer: (c)
The correct answer is (c): Decomposition of lead nitrate. Subject: Indian Polity | Sub-topic: Parliament & State Legislatures Note: This answer was determined through AI-based research. Verify against the official answer key when available.