SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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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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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: -We have to know that enantiomers have different configurations at the stereogenic centre because they are mirror images to each other. Therefore, the option (C) is correct. Enantiomers are not superimposable.
Detailed explanation-4: -Optically active compounds rotate the plane of polarised light.
Detailed explanation-5: -A racemic mixture is defined as a mixture of equal amounts of the two enantiomer forms of a given chiral molecule. One interesting aspect about a racemic mixture is that it is optically inactive, meaning it does not rotate plane polarized light.