assertion: The size of an interstitial void is smaller than the size of the atom that occupies it.
Reasoning: In an interstitial site, an atom is placed in the interstices of the crystal lattice, which are smaller in size than the atoms themselves.
Both Assertion and Reasoning are true and Reasoning is the correct explanation of Assertion.
Both Assertion and Reasoning are true but Reasoning is not the correct explanation of Assertion.
Assertion is true but Reasoning is false.
Both Assertion and Reasoning are false.
The size of an interstitial void is smaller than the size of the atom that occupies it because the interstices in a crystal lattice are smaller in size than the atoms themselves. Hence, both Assertion and Reasoning are true, and Reasoning is the correct explanation of Assertion.