MCQ
Which of the following are aromatic?


- ✓$B$ and $D$ only
- B$A$ and $C$ only
- C$A$ and $B$ only
- D$C$ and $D$ only


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$A.$Reaction is spontaneous at $(a)$ and $(b)$
$B.$Reaction is at equilibrium at point $(b)$ and nonspontaneous at point $(c)$
$C.$Reaction is spontaneous at $(a)$ and nonspontaneous at $(c)$
$D.$Reaction is non-spontaneous at $(a)$ and $(b)$
$4NH_3 + 5O_2 \to 4NO + 6H_2O$
Ice $ \rightleftharpoons $ Water