An enantiomerically pure acid is treated with a racemic mixture of an alcohol having one chiral carbon. The ester formed will be

Given below are two statements.
Statement $I$: The compound shown below is optically active.
[Image of compound $A$]
Statement $II$: The compound shown below is the mirror image of the above compound $A$.
[Image of compound $B$]
In the light of the above statements,choose the most appropriate answer from the options given below.

The number of optical isomers of an organic compound having $n$ asymmetric carbon atoms will be

Lactic acid shows which type of isomerism?

Which of the following molecules can rotate the plane of plane-polarized light?

Which of the following is optically active?