JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Heavy water is not used for dinking because:

(A)It is poisonous
(B)It is costly
(C)Its physiological action is different from ordinary waterCorrect
(D)Its chemical properties are different from ordinary water

Answer: (C)

Solution

Heavy water is not acutely poisonous, and although it is indeed costly, that is an economic rather than a scientific reason. The key scientific reason it is unsuitable for regular drinking is that DO's physiological action differs from that of

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Question ID VK-137344