1.

Assertion (A) : Rain water normally has a pH of 5.6. Reason (R) : The presence of H_(2)SO_(4) and HNO_(3) produced from the oxides of sulphur and nitrogen lower the pH of rain

Answer»

Both (A) and (R) are true and (R) is the CORRECT explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true but (R) is FALSE
(A) is false but (R) is true

ANSWER :A


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