MCQ
Sulphur on boiling with $NaOH$ solution gives
- A$N{a_2}{S_2}{O_3} + NaHS{O_3}$
- ✓$N{a_2}{S_2}{O_3} + N{a_2}S$
- C$N{a_2}S{O_3}$$ + {H_2}S$
- D$N{a_2}S{O_3} + S{O_2}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$CH_3-CH_2-OH$ $\mathop {\xrightarrow{{(i)\,KMn{O_4}/\mathop O\limits^\Theta H/\Delta }}}\limits_{(ii)\,{H^ \oplus }} (A)\mathop {\xrightarrow{{(i)\,SOC{l_2}}}}\limits_{(ii)\,N{H_3}/\Delta } (B)$ $\xrightarrow{{B{r_2}/KOH}}(C)$
$(C)$ will be :
[$A$] the physical state of $\mathrm{X}_2$ at atom temperature changes from gas to solid down the group
[$B$] decrease in $HOMO-LUMO$ gap down the group
[$C$] decrease in $\pi^*-\sigma^*$ gap down the group
[$D$] decrease in ionization energy down the group
$3,4,5-$Tribromoaniline $\underset{\text{(ii) }{{H}_{3}}P{{O}_{2}}}{\mathop{\xrightarrow{\text{(i) diazotization}}}}\,\,?$