MCQ
Delocalised molecular orbitals are found in
- ✓$H_2$
- B$HS^-$
- C$CH_4$
- D$CO_3^{-2}$

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(a)$ The vapour pressure of water at $280 K$ is $14.2$ $mm Hg$
$(b)$ $R =0.082 L$ atm $K ^{-1} mol ^{-1}$

| $(IE_1 + IE_2)$ | $(IE_3 + IE_4)$ |
| $(P)$ $2.45\, KJ/mol$ | $8.82\, KJ/mol$ |
| $(Q)$ $2.85\, KJ/mol$ | $6.11\, KJ/mol$ |
then according to given information the incorrect statements is/are
The increase in boiling point of solution in benzene in ${ }^{\circ} \mathrm{C}$ is $\mathrm{x} \times 10^{-2}$. The value of $\mathrm{x}$ is ..... .(Nearest integer)
$[$ Atomic mass : $\mathrm{C}=12.0, \mathrm{H}=1.0, \mathrm{O}=16.0]$
$C_2H_5-Br\overset{AgCN}{\rightarrow}A\overset{H_2/Ni}{\rightarrow}B$
Product $B$ is