JEE Main 20245 AprilEvening Shift
- Exam
- JEE Main
- Year
- 2024
- Date
- 5 April
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Chemical Bonding and Molecular Structure
JEE Main 2024 · 5 April · Evening Shift · Chemistry · Chemical Bonding and Molecular Structure
Given below are two statements : one is labelled as Assertion (A)...
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : (\mathrm{NH}_3) and (\mathrm{NF}_3) molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of (\mathrm{NH}_3) is greater than that of (\mathrm{NF}_3).
Reason (R) : In (\mathrm{NH}_3), the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the (\mathrm{N}-\mathrm{H}) bonds. (\mathrm{F}) is the most electronegative element.
In the light of the above statements, choose the correct answer from the options given below :
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 ((\mathbf{R})) is NOT the correct explanation of (A)
- D(A) is true but ((\mathbf{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
Resultant dipole moment