Question

Assertion :$9$ g of Aluminium reacts completely with $8$ g of oxygen. Reason: One equivalent weight of Al reacts with one equivalent weight of oxygen.

• 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. Assertion is incorrect but Reason is correct.

Answer 1

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

Equivalent weight of $A{l}^{3+}$ is $\frac{27}{3}=9$ and $O^{2-}=$ $\frac{16}{2}=8$

This represent that 9 g of aluminium reacts completely with 8 g of oxygen.

Therefore, (A) is the correct answer.