Match List-I with List-II.
| List-I | List-II |
| a. Endothermic | 1. Variation of enthalpy of a reaction with temperature |
| b. Exothermic | 2. A process or reaction which consumes heat |
| c. Activation energy | 3. A process or reaction that releases heat |
| d. Arrhenius equation | 4. The amount of energy which must be invested in a reaction to get it started |
A. a-2, b-3, c-4, d-1
B. a-3, b-4, c-1, d-2
C. a-4, b-1, c-2, d-3
D. a-1, b-2, c-3, d-4
Answer: Option A

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