NEETChemistryChemical Bonding and Molecular Structure
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
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- B(A) is false but (R) is true
- CBoth (A) and (R) are true but (( R ) ) is NOT the correct explanation of (A)
- 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