Which of the following statements is/are corr | vedclass

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(D) . When $Al$ reacts with dil. $HCl$,it liberates $H_2$ gas: $2 Al + 6 HCl 	ext{ (dil.) } \longrightarrow 2 AlCl_3 + 3 H_2$.$B$. When $Al$ reacts w

Vedclass · Accepted Answer

$A$

Vedclass · Answer

(D) . When $Al$ reacts with dil. $HCl$,it liberates $H_2$ gas: $2 Al + 6 HCl 	ext{ (dil.) } \longrightarrow 2 AlCl_3 + 3 H_2$.$B$. When $Al$ reacts with conc. $HNO_3$,it becomes passive due to the formation of a protective oxide layer and does not liberate $H_2$ gas.$C$. Crystalline boron is chemically inert and does not react with acids to liberate $H_2$ gas.$D$. Anhydrous $AlCl_3$ undergoes hydrolysis with moisture to release $HCl$ fumes,not $H_2$ gas: $AlCl_3 + 3 H_2 O \longrightarrow Al(OH)_3 + 3 HCl$.Therefore,only statement $A$ is correct.

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