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Assertion: Molecular weight of oxygen is...

Assertion: Molecular weight of oxygen is 16.
Reason: Atomic weight of oxygen is 16.

A

If both assertion and reason are true and the reason is the correct explanation 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.

Text Solution

Verified by Experts

The correct Answer is:
D
We known that molecular weight of substance is calculated by adding the atomic weight of atoms present in one molecules. We also know that molecular weight of oxygen `(O_(2))=2x` (Atomic weight of oxygen ) `=2xx16=32` a.m.u. Atoic weight of oxygen is 16, because it is 16 times heavier than `1//12^(th)` of carbon atom. Therefore assertion is false but reason is true.
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