First slide

13th group or boron group

Question

The gas liberated when Aluminum reacts with conc. $H_{2} S O_{4}$ .is ____?

Moderate

A

$H_{2} S$
B

$O_{2}$
C

$S O_{2}$
D

$H_{2}$

Solution

$A l + H_{2} S O_{4} \to A l_{2} {(S O_{4})}_{3} + S O_{2} + H_{2} O$
In the above reaction, sulfate ion acts as an oxidizing agent since it is concentrated.

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