1.

Assertion : The `pH` of human blood at body temperature is found to be `6.9`. Reason : Blood is alkaline in nature.A. If both assertion and reason are true and the reason is the correct explantion of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If assertion is false but reason is true.

Answer» Correct Answer - D
Blood is alkaline and at body temperature `(98^(@)F)` scale of `pH` lies between `0` and `13.6`.


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