Assertion : Molecular mass of $A$ is $\frac{M}{4}$ if the molecular mass of $B$ is $M$. Reason : Vapour density of $A$ four times that of $B$.

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

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If the assertion and reason both are false.

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NEET UG CHEMISTRY MCQ: STATES OF MATTER

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Assertion : Molecular mass of

A

\frac{M}{4}

if the molecular mass of

B

M

.

Reason : Vapour density of

A

four times that of

B

View answer and explanation

Correct option: C

If assertion is true but reason is false.

Option C (If assertion is true but reason is false) is correct because the assertion is true (molecular mass is related to vapor density), but the reason is false (vapor density is half the molecular mass).

NEET UG CHEMISTRY MCQ: STATES OF MATTER

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