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Q.
Which of the following has maximum laevorotatory nature ?
J & K CETJ & K CET 2009Biomolecules
Solution:
D - ( + ) - glucose has specific rotation of + 52.5$^{\circ}$
D-(-)-fructose has specific rotation of - 92.4$^{\circ}$
while that of invert sugar has laevorotation of - 92-4$^{\circ}$ + 52 5$^{\circ}$ = -39.9$^{\circ}$.