Question

Conc. $HN{O}_3$ :

• A. react with $Al$ to form aluminium nitrate
• B. React with aluminium vigorously
• C. doesn't react with $Al$
• D. react with platinum

Answer 1

The correct option is C doesn't react with $Al$

Aluminum metal is not attacked by nitric acid of any concentration because of the thin and unreactive protective layer of aluminum oxide formed on the metallic surface due to the reaction of aluminium metal with oxygen of air.

Hence option $C$ is correct.