Statement-I : Essential condition for a compound to be an optically active is presence of chiral carbon.Statement-II : If there is one chiral carbon then molecule have no symmetry.
Question
Statement-I : Essential condition for a compound to be an optically active is presence of chiral carbon.Statement-II : If there is one chiral carbon then molecule have no symmetry.
Solution
Statement-I: True. A compound is optically active if it has a chiral carbon. A chiral carbon is a carbon atom that is attached to four different types of atoms or groups of atoms. This causes the compound to have a non-superimposable mirror image, which is a property of chiral molecules.
Statement-II: Not necessarily true. The presence of a chiral carbon does not automatically mean that the molecule has no symmetry. It's possible for a molecule with a chiral carbon to still have an internal plane of symmetry if it has more than one chiral center. This would make the molecule a meso compound, which is optically inactive. Therefore, while the presence of a chiral carbon is a requirement for optical activity, it does not guarantee that the molecule will lack symmetry.
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