Which of the given statement(s) about N, O, P and Q with respect to M is (are) correct?
M and N are non-mirror image stereoisomers
M and O are identical
M and P are enantiomers
a, b, c
i) In (M), Cl and CH3 are below the plane, so they are placed on vertical line in Fischer projection as shown in structure (M).
ii) In (N), CH3 and Cl are below the plane, so they are placed on vertical line as shown in Fischer structure N.
So M and N are non-mirror image stereoisomers.
Convert Sawhorse structure of (O) into Fischer projection formula.
Hence (M) and (O) are identical.
c) Convert Newman projection of (P) into Sawhorse and then into Fischer formula.
Hence (M) and (P) are enantiomers.
d) Convert Newman projections of (Q) into Sawhorse adn then into Fishcer formula.
Cl and CH3 are below the plane and are placed on vertical line in Fischer formula.
So (M) and (Q) are not identical. So statement (a), (b) and (c) are correct. Statement (d) is wrong.
The Fishcer projection formula of (M), (N), (O), (P) and (Q) are represented as below.