MCQ
Which of the following is a free radical substitution reaction?
- APropene with $HBr /\left( C _{6} H _{5} COO \right)_{2}$
- BBenzene with $Br _{2} / AlCl _{3}$
- CAcetylene with $HBr$
- ✓Methane with $Br _{2} / hv$

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${N_2}{O_3}\xrightarrow{{R.T.}}NO + N{O_2}$