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Statement 1: Molecules that are not super imposable on their mirror images are chiral. Statement -2 : All chiral molecules have chiral centres.

(a) Statement - 1 is true; Statement - 2 is true; Statement - 2 is a correct explanation for statement -1

(b) Statement - 1 is true; Statement - 2 is true; Statement - 2 is not a correct explanation for statement -1

(c) Statement - 1 is true; Statement - 2 is false

(d) Statement - 1 is false; Statement - 2 is true

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1 Answer

Suitably substituted allenes (2,3 -pentadiene ) and biphenyls are optically active although they are dissymmetric (ie) don't have asymmetric carbon atoms.
$\therefore$ Statement - 1 is true; Statement - 2 is false
Hence c is the correct answer.
answered Feb 21, 2014 by meena.p
 

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