Two possible stereo-structures of $CH_3CH(OH)COOH$,which are optically active,are called

In which property do $d$ and $l$ isomers differ?

Which of the following isomers of $C_7H_{16}$ exhibits optical isomerism?

Dichloroethene cannot exhibit ............

Two possible stereoisomers for a molecule with a single chiral centre are:

The concentration of an organic compound in chloroform is $6.15 \ g$ per $100 \ mL$ of solution. $A$ portion of this solution in a $5 \ cm$ polarimeter tube causes an observed rotation of $-1.2^{\circ}$. What is the specific rotation of the compound?