MCQ
$1{s^2}2{s^2}2{p^6}3{s^1}$ shows configuration of
- A$A{l^{3 + }}$ in ground state
- B$Ne$ in excited state
- ✓$M{g^ + }$ in excited state
- DNone of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| LIST $I$ (Technique) | LIST $II$ (Application) |
| $A$. Distillation | $I$. Separation of glycerol from spent-lye |
| $B$. Fractional distillation | $II$Aniline - Water mixture |
| $C$. Steam distillation | $III$Separation of crude oil fractions |
| $D$. Distillation under reduced pressure | $IV$.ChloroformAniline |
Choose the correct answer from the options given below:

$(a)$ $Be _{2} C$
$(b)$ $CaC _{2}$
$(c)$ $Mg _{2} C _{3}$
$(d)$ $Al _{4} C _{3}$
