Which is the correct structure of $D$ -glyceraldehyde ?
All of these
How many different stereoisomers are possible for the following compound ?
$\begin{array}{*{20}{c}}
H\\
|\\
{ClHC = HC - C - CH = CHCl}\\
|\\
{Cl}
\end{array}$
Which of the following compound is optically active?
Which of the following molecules is expected to rotate the plane of plane-polarised light ?
Which of the following combination amongst the four fischer projections represents the enantiomers