Read the Assertion

Chemistry Some Basic Concepts of Chemistry Assertion & Reason Single Correct MCQ

Published on: August 12, 2026

Read the Assertion

and Reason (R) carefully to mark the correct option out of the options given below: Assertion: Atoms can neither be created nor destroyed. Reason: Under similar condition of temperature and pressure, equal volume of gases does not contain equal number of atoms.
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 assertion is true, but reason is false.

If both assertion and reason are false.

Text Solution

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The correct answer is:

According to Dalton's atomic theory, atoms can neither be created nor destroyed and

according to Berzelius hypothesis, under similar condition of temperature and pressure, equal volumes of all gases contain equal no. of atoms. Therefore, assertion is true but reason is false.

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