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Reason $(R)$ : Oxygen forms $\mathrm{p} \pi-\mathrm{p} \pi$ multiple bonds with itself and other elements having small size and high electronegativity like $\mathrm{C}, \mathrm{N}$, which is not possible for sulphur.
In the light of the above statements, choose the most appropriate answer from the options given below :
$I.\,\,CH_2=CHCH_2NH_2$
$II.\,\, CH_3CH_2CH_2NH_2$
$III. CH \equiv CC{H_2}N{H_2}$
$A ( g )+ B ( g ) \rightleftharpoons AB ( g ) \text {. }$
The activation energy of the backward reaction exceeds that of the forward reaction by $2RT$ (in $J mol ^{-1}$ ). If the pre-exponential factor of the forward reaction is $4$ times that of the reverse reaction, the absolute value of $\Delta G ^{\ominus}$ (in $J mol ^{-1}$ ) for the reaction at $300 K$ is. . . . . (Given; $\ln (2)=0.7, RT =2500 J mol ^{-1}$ at $300 K$ and $G$ is the Gibbs energy)
Under standard conditions, the number of moles of $M ^{+}$oxidized when one mole of $X$ is converted to $Y$ is $\left[ F =96500 \ C \ mol ^{-1}\right]$