Concentrated H2SO4 is not used to prepare HBr from KBr because it

It is highly corrosive in nature and also very irritating to inhale. But conc. H2SO4 is not used here because HBr is a strong reducing agent and it reduces H2SO4 to SO2 and oxidizes itself and forms a molecule of Br2.

Concentrated H2SO4 is not used to prepare HBr from KBr because it

It is highly corrosive in nature and also very irritating to inhale. But conc. H2SO4 is not used here because HBr is a strong reducing agent and it reduces H2SO4 to SO2 and oxidizes itself and forms a molecule of Br2.

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Concentrated H₂SO₄ is not used to prepare HBr from KBr because it

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Reduces HBr

Oxidizes HBr

Reacts too slowly with KBr

Causes disproportionation of HBr

answer is A.

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Detailed Solution

It is highly corrosive in nature and also very irritating to inhale. But conc. H₂SO₄ is not used here because HBr is a strong reducing agent and it reduces H₂SO₄ to SO₂ and oxidizes itself and forms a molecule of Br₂.

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