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KBr, on reaction with conc. `H_(2)SO_(4)`, gives reddish-brown gas :
A. Bromine
B. Mixture of bromine and HBr
C. HBr
D. `NO_(2)`

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Correct Answer - A
`KBr+H_(2)SO_(4) to KHSO_(4)+HBr,2HBr+9H_(2)SO_(4) to Br_(2) +2H_(2)O+SO_(2)`

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