Which of the following molecules is expected | vedclass

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(B) molecule is expected to rotate the plane of plane-polarised light if it is optically active.Optically active molecules must be chiral,meaning they

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Glyceraldehyde $(HOCH_2-CH(OH)-CHO)$

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(B) molecule is expected to rotate the plane of plane-polarised light if it is optically active.Optically active molecules must be chiral,meaning they lack a plane of symmetry or center of inversion.$1$. Glycine $(H_2N-CH_2-COOH)$ has a plane of symmetry and is achiral.$2$. Glyceraldehyde $(HOCH_2-CH(OH)-CHO)$ has a chiral carbon atom bonded to four different groups $(-H, -OH, -CHO, -CH_2OH)$ and is optically active.$3$. Butane-$2$-thiol $(CH_3-CH(SH)-CH_2-CH_3)$ has a chiral carbon atom bonded to four different groups $(-H, -SH, -CH_3, -CH_2CH_3)$ and is optically active.$4$. $1,2$-Diphenylethane-$1,2$-diamine can exist as a meso compound (optically inactive) or as chiral enantiomers depending on the configuration.In the context of standard chemistry questions,both Glyceraldehyde and Butane-$2$-thiol are classic examples of chiral molecules. However,Glyceraldehyde is the most fundamental example of a chiral molecule in carbohydrates. Given the options,both $B$ and $C$ are chiral. Assuming a single choice is required,Glyceraldehyde is the standard textbook example.

Which of the following molecules is expected to rotate the plane of plane-polarised light?

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