Question

Which of the following notations is not used to distinguish between pairs of enantiomers?

• A. R and S
• B. E and Z
• C. $(+)$ and $(-)$
• D. D and L

Answer 1

The correct option is B E and Z

All four of these notations are used to distinguish between isomers, but only three are used specifically in the context of enantiomers. The fourth - E and Z - is used to differentiate between geometric isomers, not enantiomers. E and Z are used when $cis$ and $trans$ is not appropriate to use.
R and S is absolute configuration of the enantiomers
D and L is relative configuration of the enantiomers
(+) and (-) notations represents the rotation of plane polarised light to clockwise or anticlocwise direction.

Hence, (b) is correct.