0.5 g of an optically active compound was dissolved in 2mL of solvent at 25^0C. The solution was kept in a cell of length 10 cm and observed rotation was +10^0. What is the specific rotation of its enantiomer?
(a) -40^0
(b) +40^0
(c) -10^0
(d) +10^0
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The above asked question is from Chirality topic in chapter Structure and Stereostructure of Molecules of Engineering Chemistry I