First slide

Hydrogen chloride

Question

When KBr is treated with concentrated $H_{2} {SO}_{4}$ reddish brown gas evolved, gas is

Moderate

A

Mixture of bromine and HBr
B

HBr
C

Bromine
D

None of these

Solution

$2 KBr + 3 H_{2} {SO}_{4} + Mn O_{2} \overset{Δ}{\to} 2 {KHSO}_{4} + {MnSO}_{4} + 2 H_{2} O + {Br}_{2}$

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