MCQ
Which of following is correct :


- A$R_1 > R_2 > R_3$
- B$R_3 > R_2 > R_1$
- ✓$R_2 > R_1 > R_3$
- D$R_2 > R_3 > R_1$

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| List $- I$ Electronic configuration of elements |
List $- II$ $\Delta_{ i }$ in $kJ\, mol-1$ |
| $(a)$ $1 s ^{2} 2 s ^{2}$ | $(i)$ $801$ |
| $(b)$ $1 s ^{2} 2 s ^{2} 2 p ^{4}$ | $(ii)$ $899$ |
| $(c)$ $1 s^{2} 2 s^{2} 2 p^{3}$ | $(iii)$ $1314$ |
| $(d)$ $1 s ^{2} 2 s ^{2} 2 p ^{1}$ | $(iv)$ $1402$ |
Choose the most appropriate answer from the options given below

$[Image]$
$(A)$ $o-$Nitroaniline and $p-$nitroaniline are the predominant products
$(B)$ $p-$Nitroaniline and $m-$nitroaniline are the predominant products
$(C)$ $HNO _{3}$ acts as an acid
$(D)$ $H _{2} SO _{4}$ acts as an acid