1.

The optically active tartaric acid is named as D-(+)-tartaric acid because it has a positive

Answer»

Optical rotation and is derived from D-glucose
PH in organic solvent
Optical rotation and is derived from D-(+)- glyceraldehyde
Optical rotation when substituted by deuterium

Solution :D-word is used to represent the ARRANGEMENT of -OH group in right side at SECOND LAST carbon atoms as in glyceraldehyde.
`{:(""CHO),("|"),(H-C-OH),("|"),(""CH_(2)OH):}`
and (+) sign is used to represent the rotation in right side. Hence, in D-(+)-tartaric acid.

Hence, it has a positive optical rotation and it is devided with glyceraldehyde.


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