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प्रश्न
Assertion (A): Excess of nitrates in drinking water are harmful for infants.
Reason (R): Nitrates are responsible for the 'blue-baby syndrome'.
पर्याय
Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.
Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.
Assertion (A) is true but reason (R) is false.
Both assertion (A) and reason (R) are false.
MCQ
विधान आणि तर्क
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उत्तर
Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.
Explanation:
Excess nitrate can form non-functional methaemoglobin, which reduces oxygen transport. This causes blue-baby syndrome and makes nitrate-contaminated water especially dangerous for infants.
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