Consider the following reactions, $A$ and $B$ are

Consider the following reactions,
$A$ and $B$ are

1. $A=\mathrm{C}_2 \mathrm{H}_4, B=\mathrm{C}_6 \mathrm{H}_6$
2. $A=\mathrm{C}_2 \mathrm{H}_6, B=\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$
3. $A=\mathrm{C}_2 \mathrm{H}_4, B=\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$
4. $A=\mathrm{C}_6 \mathrm{H}_6, B=\mathrm{C}_6 \mathrm{H}_5 \mathrm{NO}_2$

Asked in: AP EAMCET 2001

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