Riddish brown gas is obtain with the following are treated with cone `H_(2)SO_(4)`
A. `Br^(Θ)`
B. `NO_(2)^(Θ)`
C. `NO_(3)^(Θ)`
D. `SO_(3)^(2-)`
A. `Br^(Θ)`
B. `NO_(2)^(Θ)`
C. `NO_(3)^(Θ)`
D. `SO_(3)^(2-)`
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Correct Answer – a,b,c
`Br^(Theta)` ions gives `Br_(2),NO_(2)^(Theta)` and `NO_(3)^(Theta)` give `NO_(2)` gas wich are brown in colour