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Assertion (A) : Non-polar materials do n...

Assertion (A) : Non-polar materials do not have any permanent dipole moment.
Reason (R) : When a non-polar materials is placed in an electric field, the center of the positive charge distribution of it's individual atom or molecule coincides with the centre of the negative charge distribution.

A

Both (A) and (R) are correct and (R) is the correct explanation of (A)

B

Both (A) and (R) are correct and (R) is not the correct explanation of (A)

C

(A) is correct but (R) is not correct

D

(A) is not correct but (R) is correct

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Knowledge Check

  • Assertion: Polar mlecules have permanent dipole moment. Reason : In polar molecule, the centres of positive and negative charges coincide evcen wehen there is no external field.

    A
    If both assertion and reason are ture and reason is the correct explanation of assertion.
    B
    If both assertin and reason are ture but reason is not the correct explanation of assertion .
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.
  • A water molecule has an electric dipole moment C-m when it is in vapour state .The distance between center of positive and negative charge of the molecules

    A
    `5xx10^(-11)m`
    B
    `2xx10^(-11)m`
    C
    `4.1xx10^(-3)m`
    D
    `4.375xx10^(-11)m`
  • Atom and non polar molecules are electrically symmetrial and have no dipole moment because

    A
    their electronic charge cloud is symmetrically distributed
    B
    their electronic charge cloud is unsymmetrically distributed
    C
    momentarilly electronic charge distributed on all atoms
    D
    all of the above
  • JEE MAINS PREVIOUS YEAR-JEE MAINS 2022-PHYSICS- SECTION A (ASSERTION (A) REASON (R))
    1. Assertion (A) : Non-polar materials do not have any permanent dipole m...

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