Assertion: A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Reason: All exothermic reactions are accompanied by decrease in randomness.
- AA — Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- BB — Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
- CC — Assertion is true but Reason is false.
- DD — Both Assertion and Reason are false.
✓ Correct answer: C
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