SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which statement is correct about the enantiomers of a chiral compound?
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Their physical properties are different.
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All their chemical reactions are identical.
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A racemic mixture will rotate the plane of polarized light.
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They will rotate the plane of polarized light in opposite directions.
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Explanation:
Detailed explanation-1: -Answer and Explanation: They rotate the plane of polarized light in the same amount but in opposite directions.
Detailed explanation-2: -Because chiral molecules are able to rotate the plane of polarization differently by interacting with the electric field differently, they are said to be optically active. In general molecules that rotate light in differen directions are called optical isomers.
Detailed explanation-3: -As stated, chiral molecules are optically active, which implies that when a beam of plane-polarized light passes through a chiral molecule, it interacts with the molecule in such a way that the angle of the plane of oscillation rotates.
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