(C) In the Gattermann reaction,chlorine or bromine can be introduced into the arene ring by treating the arene diazonium salt solution with the corres

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$ArN_{2}^{+}X^{-} \xrightarrow{Cu/HBr} ArBr + N_{2} \uparrow$

(C) In the Gattermann reaction,chlorine or bromine can be introduced into the arene ring by treating the arene diazonium salt solution with the corresponding halogen acid in the presence of copper powder.Option $C$ represents the Gattermann reaction where $ArN_{2}^{+}X^{-}$ reacts with $Cu/HBr$ to form $ArBr$.

Class 12 Chemistry Haloalkanes and Haloarenes Preparation of Haloarenes

Easy

Which of the following is a Gattermann reaction?

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A
$ArN_{2}^{+}X^{-} \xrightarrow{Cu/HCl} ArCl + N_{2} \uparrow$
B
$ArN_{2}^{+}X^{-}$ $\xrightarrow{HBF_{4}} ArN_{2}^{+}BF_{4}^{-}$ $\xrightarrow{\Delta} ArF + N_{2} \uparrow + BF_{3}$
C
$ArN_{2}^{+}X^{-} \xrightarrow{Cu/HBr} ArBr + N_{2} \uparrow$
D
$ArN_{2}^{+}X^{-} \xrightarrow{KI, \Delta} ArI + N_{2} \uparrow + KX$