Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Question Explanation:

Identify the correct Fischer projection corresponding to the given Newman projection of a substituted carbon–carbon bond.

Concept:

This is based on stereochemical interconversion from Newman to Fischer projection.

Solution:

First rotate Newman to eclipsed form, now rule to remember:

Groups pointing towards you in Newman → go on horizontal lines in Fischer.

Groups pointing away from you → go on vertical lines in Fischer.

Keep COOH at top and CH₃ at bottom (or longest chain vertical) to match standard Fischer orientation and match left–right positions accordingly.