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Summary

Any substance...

Question

Any substance that rotates the plane of polarized light is said to be optically active. If a pure compound is optically active, the molecule is non-superimposable on its mirror image. If a molecule is superimposable on its mirror image, the compound does not rotate the plane of polarized light and is optically inactive. The property of non-superimposability of an object on its mirror image is called chirality.

A

Option c missing

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B

Option a missing

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C

Option d missing

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D

Option b missing

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Solution

The correct option is B Option a missing
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Similar questions

A compound whose molecule is superimposable on its mirror image despite containing chiral carbon atoms is called:

Q. Methylethylpropyl amine is optically inactive because
(i) It is not tetrahedral
(ii) Its molecule is superimposable on its mirror image
(iii) The enantiomers are rapidly interconverted
(iv) The nitrogen is

{s p}^{2}

hybridized
Which of the above statement(s) is(are) true?

Q. The compound

l - (N - e t h y l - N - m e t h y l) - p r o p a n a m i n e

forms non-superimposable mirror images.

But this compound does not show optical activity because of the:

Q. An organic compound having a carbon attached to four different groups is optically active. But, is the opposite also true? That is, do all optically active organic compounds have chiral carbons? Not necessarily. Presence or absence of chiral centre is not the sufficient criterion for optical activity. The ultimate criterion is the presence or absence of either plane or centre of symmetry. Two compounds which are non-superimposable mirror images of each other are called enantiomers. If a compound contains more than one chiral carbon, new words are required to describe the relationship between various stereoisomers of the compounds. Those words are diastereomers and mesomers.

Optically active compounds among the following is :

Q. An organic compound having a carbon attached to four different groups is optically active. But, is the opposite also true? That is, do all optically active organic compounds have chiral carbons? Not necessarily. Presence or absence of chiral center is not the sufficient criterion for optical activity. The ultimate criterion is presence or absence of either plane or center of symmetry. Two compounds which are non-superimposable mirror images of each other are called enantiomers. If a compound contains more than one chiral carbon, new words are required to describe the relationship between various stereoisomers of the compounds. Those words are diastereomers and mesomers.
Optically active compounds among the following is/are
(A)

C H_{3} - C H = C = C H_{2}

C H_{3} - C H = C = C H - C H_{3}

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