Question

$NaOH$ cannot be stored in a vessel made of aluminium or zinc. A protective layer of oxide is formed on the surface of the metal.

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
• C. Assertion is true but Reason is false
• D. Both Assertion and Reason are false

Answer 1

Answer: (C)

Assertion is true but Reason is false

Answer 2

$NaOH$ reacts with $Al$ and $Zn$ both and forms soluble $NaAlO _{2}$ and $Na _{2} ZnO _{2}$ (sodium aluminate and sodium zincate) respectively.