1.

Whatis meantby dextroand levo rotatory ?

Answer»

Solution :(i) FISCHER has devise a projecion formulatorelatethe TWO enantiomericforms . Baseon this ,CARBOHYDRATES are namedas Dor L .
+and - SIGN indicatesthedextrorotatoryand LEVO rotatoryrespectively .
(iii) Dextrorotatorycompound rotate the planeor planepolarisedlightin clokwise directionwhilerotatorycompounds rotatein anticlockwisedirectionwhilethe levorotatorycompounds rotate inanticlokwisedirection .
(iv) Dextrorotatorycompoundsare reprsented as D(+)or L (+) and thelevo rotationcompoundas D(-)orL(+).
`underset("D-Glyceraldehyde")(H-underset(CH_2 OH)underset(|)overset(CHO)overset(|)C-OH) ""underset("L-Glyceraldehyde")(HO-underset(CH_2 OH)underset(|)overset(CHO)overset(|)C-H)`


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