Optical activity is expected for :

Options

A. 2-chloropropanoic acid
B. 2-methyl propanoic acid
C. methyl-2-chloropropanoate
D. methyl-2-methyl propanoate

Answer

A, C

Explanation

A) `H_3 C underset(H)underset(|)overset(Cl)overset(|)C-COOH" "`B) `H_3 C underset(CH_3)underset(|)overset(H)overset(|)C-overset(O)overset(||)C_OH " "`C) `H_3 C underset(Cl)underset(|)overset(H)overset(|)C-COOCH_3 " "`D) `CH_3 - underset(CH_3)underset(|)overset(H)overset(|)C-overset(O)overset(||)C-O-CH_3`