Question

Assertion :$22.4L$ of methane gas contains $3.011\times {10}^{24}$ atoms. Reason: Methane has an atomicity of $5$.

Read the above assertion and reason and choose the correct option regarding it

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
• C. Assertion is correct but Reason is incorrect.
• D. Both Assertion and Reason are incorrect.

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

$22.4L$ Methane represents $1mole$ gas

1 molecule of $C{H}_4$ possess total atoms $=5$

Number of atoms in $1MoleC{H}_4=5\times N_A$

$\Rightarrow 5\times 6.023\times {10}^{23}=3.011\times {10}^{24}atoms$

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.