The structures shown below represent .......

The conformations of $n$-butane, commonly known as eclipsed, gauche, and anti-conformations, can be interconverted by:

Which of the following conformations will be the most stable?

The Newman projection formula of the most stable conformation of $3-$Hydroxypropanal is:

Which is the most stable conformer along the $2, 3$-$C-C$ bond axis of the compound?

In the Newman projection for $2,2$-dimethylbutane,what can $X$ and $Y$ respectively be?
$A$. $H$ and $H$
$B$. $H$ and $C_2H_5$
$C$. $C_2H_5$ and $H$
$D$. $CH_3$ and $CH_3$