MCQ
For $d$ electrons, the azimuthal quantum number is
- A$0$
- B$1$
- ✓$2$
- D$3$
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(Given : $h =6.63 \times 10^{-34} \,Js , N _{ A }=6.02 \times 10^{23} \,mol ^{-1}$, $c =3 \times 10^{8}\, ms ^{-1}$ )

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$(A)$ $o-$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
