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In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.
Assertion (A) : A liquid crystallises into a solid and is accompanied by decrease in entropy.
Reason (R) : In crystals, molecules organise in an ordered manner.
(i) Both A and R are true, and R is the correct explanation of A.
(ii) Both A and R are true, but R is not the correct explanation of A.
(iii) A is true, but R is false.
(iv) A is false, but R is true.
Answers (1)
The answer is option (i) Both A and R are true, and R is the correct explanation of A.
Explanation: As the liquid starts to crystallize the randomness in the molecules decreases as they get arranged in an orderly fashion. Hence, the entropy decreases.
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