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JEE Main20245 Apr 2024Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : ( NH ₃ ) and ( NF ₃ ) molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of ( NH ₃ ) is greater than that of ( NF ₃ ). Reason (R) : In ( NH ₃ ), the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of th

Options

  1. ABoth (A) and (R) are true and (R) is the correct explanation of (A)
  2. B(A) is false but (R) is true
  3. CBoth (A) and (R) are true but (( R ) ) is NOT the correct explanation of (A)
  4. D(A) is true but (( R ) ) is false

Correct answer

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

Step-by-step solution

Resultant dipole moment =0.80 10⁻³⁰ Cm Resultant dipole moment =4.90 10⁻³⁰ ~cm

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