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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pb145

Select the correct statement(s) about the reactions of aluminium.

AIt reacts with dilute HCl to give $AlCl X_{3}$ and $H X_{2}$ .
BIt dissolves in aqueous NaOH, liberating $H X_{2}$ .
CIt dissolves vigorously in conc. $HNO X_{3}$ at room temperature.
DIt reacts with $N X_{2}$ at high temperature to give AlN.

Answer: A, B, D

Al is a reactive metal (A true), and

2 Al + 2 NaOH + 6 H X_{2} O 2 Na [Al (OH) X_{4}] + 3 H X_{2}

(B true). Conc. nitric acid passivates it (C false). Heated Al gives AlN with nitrogen (D true).

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