Home / Unit-8 Energetics / Question
MCQ
Which of the following is an example of an endothermic reaction?
Unit-8 Energetics
A Burning of wood
B Decomposition of limestone (CaCO3)
C Respiration
D Reaction of acid with base
Explanation

Decomposition of limestone requires heat, so it is an endothermic reaction.

Related MCQs

In which reaction are the products at a higher energy level than the reactants?
Unit-8 Energetics View
Melting of ice and evaporation of water are endothermic because they:
Unit-8 Energetics View
A reaction that absorbs heat energy from its surroundings is called:
Unit-8 Energetics View
Which statement best describes the spontaneity of a reaction at constant temperature and pressure?
Unit-8 Energetics View
In an exothermic reaction, the sign of the enthalpy change (delta H) is:
Unit-8 Energetics View
The heat evolved or absorbed when one mole of a substance is completely burned in excess oxygen is called:
Unit-8 Energetics View