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Assertion (A): For questions below, two statements are given o.le labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes \( (a),(b),(c) \) and \( (d) \) given below :
(a) Both \( \mathrm{A} \) and \( \mathrm{R} \) are correct and \( \mathrm{R} \) is the correct explanation of \( \mathrm{A} \).
(b) Both A and \( \mathrm{R} \) are correct but \( \mathrm{R} \) is not the correct explanation of \( \mathrm{A} \).
(c) A is correct but \( \mathrm{R} \) is wrong.
(d) A is wrong but \( \mathrm{R} \) is correct.
When \( \mathrm{pH} \) of rain water rises above \( 5 \cdot 6 \), it is called acid rain.
Reason (R): Acid rain arises due to dissolution of gases like \( \mathrm{SO}_{2}, \mathrm{NO}_{2} \) etc. into rain water.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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