1. Tardigrade
  2. Question
  3. Chemistry
  4. Statement I Molecules that are non-superimposable on their mirror images are chiral. Statement II All chiral molecules have chiral centres. (1) Statement I is correct; Statement II is correct; Statement II is the correct explanation of Statement I (2) Statement I is correct; Statement II is correct; Statement II is not the correct explanation of Statement I (3) Statement I is correct; Statement II is incorrect (4) Statement I is incorrect; Statement II is correct

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Q. Statement I Molecules that are non-superimposable on their mirror images are chiral.
Statement II All chiral molecules have chiral centres.
(1) Statement I is correct; Statement II is correct; Statement II is the correct explanation of Statement I
(2) Statement I is correct; Statement II is correct; Statement II is not the correct explanation of Statement I
(3) Statement I is correct; Statement II is incorrect
(4) Statement I is incorrect; Statement II is correct

IIT JEEIIT JEE 2007Organic Chemistry – Some Basic Principles and Techniques

Solution:

Molecules that are non-superimposable on its mirror image are optically active and known as chiral molecule. However, for chirality of molecule, presence of chiral centre is not essential,
e-g. image
Molecule is chiral but does not possesses any chiral carbon.