A) \[{{(C{{H}_{3}})}_{2}}CHCHO\]
B) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHO\]
C) \[C{{H}_{3}}C{{H}_{2}}CHBrCHO\]
D) \[C{{H}_{3}}C{{H}_{2}}CB{{r}_{2}}CHO\]
Correct Answer: C
Solution :
Compounds having asymmetric C-atom is optically active e.g., \[C{{H}_{3}}-C{{H}_{2}}{{-}^{*}}\underset{Br}{\mathop{\underset{|}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-CHO\] The C-atom whose four valencies are satisfied by four different groups is asymmetric C-tom.
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