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Statement I: Molecules that are non-supe...

Statement I: Molecules that are non-superimposable on their mirror images are chiral.
Statement II: All chiral molecules have chiral centres.

A

Statement I and II are true and Statement II is the correct explanation for Statement I.

B

Statement I and II are true, but Statement II is not the correct explanation of Statement I.

C

Statement I is true, Statement II is false.

D

Statement I is false, Statement II is true.

Text Solution

Verified by Experts

The correct Answer is:
C

Statement I is true but Statement II is false.
Molecules having perpendicular dissymmetric plane are chiral molecules without having chiral centre.
For example, allenes of the type

are chiral although they do not have chiral centres.
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Similar Questions

Explore conceptually related problems

(A) Molecuels that are not superimposable on their mirror images are chiral. (R) All chiral molecules have chiral centre.

Identify no .of chiral molecules.

Knowledge Check

  • Statement-1: Molecules that are not superimposable on their mirror images are chiral.because Statement-2: All chiral moleculs have chiral centres.

    A
    Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1
    B
    Statement-1 is true, statement-2 is true and statement-2 is NOT correct explanation for statement-1
    C
    Statement-1 is true, statement-2 is false
    D
    Statement-1 is false, statement-2 is true
  • Assertion: Molecules that are not superimposable on their mirror images are chiral. Reason: All chiral molecules hae chiral centres.

    A
    If both assertion and reason are correct and reason is correct explanation for assertion
    B
    If both assertion and reason are correct but reason is not correct explanation for assertion.
    C
    If assertion is correct but reason is incorrect.
    D
    if both assertion and reason are incorrect.
  • Chiral molecules are :

    A
    Superimposable on their mirro image
    B
    Not superimposable on their mirro image
    C
    unstable molecules
    D
    capable of showing geometrical isomerism
  • Similar Questions

    Explore conceptually related problems

    Select chiral molecule.

    Select the chiral molecule.

    Chiral molecules are those which are

    Number of chiral centres in

    Which of the following molecule has non-superimposible mirror images ?