Concentrated `H_(2)SO_(4)` cannot be used to prepare HBr from NaBr , because it ,
A. oxidizes HBr
B. reduces HBr
C. causes disproprotionation of HBr
D. reacts too slowly with KBr

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1 Answers

Correct Answer - A
`H_2SO_4` will oxidise HBr to `Br_2`

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