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Q.
Which one of the following is not having two chiral centres?
EAMCETEAMCET 2010
Solution:
The carbon all the four valencies of which are satisfied by four different groups is called chiral carbon or chiral centre. In $ {{H}_{3}}C-\overset{\text{*}}{\mathop{C}}\,HC{{H}_{2}}C{{H}_{3}} $ only one chiral centre is found ( $ \overset{*}{\mathop{C}}\,= $ chiral carbon atom).