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How many representations of lactic acid ...


How many representations of lactic acid are possible in Fischer projection (d & l) ?

A

8

B

12

C

24

D

36

Text Solution

Verified by Experts

The correct Answer is:
c
There are 24 (=4`!` this being the number of permutations of 4 ligands among 4 sites) ways of writing the projection formula , 12 correspond to one enantiomer and 12 to the other. Twelve of these, corresponding to the (+) enantiomers, are depicted in Fig., the 12 mirror images of those shown would represent the (-) isomer.


Twelve reprsentations of (+)-lactic acid (Fischer projections)
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