MCQ
Acetic acid exists as dimer in benzene due to
- ACondensation reaction
- ✓Hydrogen bonding
- CPresence of carboxyl group
- DPresence of hydrogen atom at $\alpha - $ carbon
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$1.$ The state $S_1$ is
$(A)$ $1 \mathrm{~s}$ $(B)$ $2 \mathrm{~s}$ $(C)$ $2 \mathrm{p}$ $(D)$ $3 \mathrm{~s}$
$2.$ Energy of the state $S_1$ in units of the hydrogen atom ground state energy is
$(A)$ $0.75$ $(B)$ $1.50$ $(C)$ $2.25$ $(D)$ $4.50$
$3.$ The orbital angular momentum quantum number of the state $S_2$ is
$(A)$ $0$ $(B)$ $1$ $(C)$ $2$ $(D)$ $3$
Give the answer question $1,2$ and $3.$
| List$-I$ | List$-II$ |
| $A$ $16\,g \text { of } CH _{4( g )}$ | $I$ Weighs $28\,g$ |
| $B$ $1\,g \text { of } H _{2( g )}$ | $II$ $60.2 \times 10^{23}$ electrons |
| $C$ $1\,mole \text { of } N _{2( g )}$ | $III$ Weighs $32\,g$ |
| $D$ $0.5\,mol$ of $SO _{2( g )}$ | $IV$ Occupies $11.4\,L$ volume at STP |
Choose the correct answer from the options given below:
