How many are meso molecules
$0$
$1$
$2$
$3$
Which compound is chiral
Which of the following hydride is capable of showing conformations
The number of stereoisomers formed in a reaction of $(\pm) Ph ( C = O ) C ( OH )( CN ) Ph$ with $HCN$ is $..........$
$I.U.P.A.C.$ name of above compound
Relation between $(A)$ and $(B)$ is