MCQ
Identify the position where electrophilic aromatic substitution $(EAS)$ is most favourable.


- A$A$
- ✓$B$
- C$C$
- D$A$ અને $C$

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| Column $I$ | Column $II$ |
| $(A)$ $CH_3COONa$ | $(i)$ Almost neutral, $pH > 7$ or $< 7$ |
| $(B)$ $NH_4Cl$ | $(ii)$ Acidic, $pH < 7$ |
| $(C)$ $NaNO_3$ | $(iii)$ Alkaline, $pH > 7$ |
| $(D)$ $CH_3COONH_4$ | $(iv)$ Neutral, $pH = 7$ |
The $\%$ yield for reaction $I$ is $60 \%$ and that of reaction II is $50 \%$. The overall yield of the complete reaction is $..........\%$ [nearest integer]