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

Question

Assertion NaOH cannot be stored in a vessel made of aluminium or zinc. Reason 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

Tardigrade Admin · Accepted Answer

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

Q. Assertion $N a O H$ cannot be stored in a vessel made of aluminium or zinc.
Reason A protective layer of oxide is formed on the surface of the metal.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

Assertion is true but Reason is false

Both Assertion and Reason are false

$N a O H$ reacts with $A l$ and $Z n$ both and forms soluble $N a A l O_{2}$ and $N a_{2} Z n O_{2}$ (sodium aluminate and sodium zincate) respectively.

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