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Chemistry
Which among the following compounds will have meso form
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Q. Which among the following compounds will have meso form
UPSEE
UPSEE 2018
A
$CH_2OH - CHOH - CHOH - CHO$
10%
B
$CH_2OH - CHOH - CHOH - COOH$
36%
C
$CH_2OH - (CHOH)_2 - CH_2OH$
38%
D
$C_6H_3 - CHCl - CHOH - CH_3$
15%
Solution:
$CH_2OH⎯ CHOH⎯ CHOH⎯ COOH$
will have meso form.
The structures that have plane of symmetry, which can divide it into two equal and identical
halves are called meso structures.
In the given compounds, only structure (b) has plane of symmetry, hence it is a meso compound.