Statement I : Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre.
Statement II : The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement II : The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules.
In the light of the above statements, choose the most appropriate answer from the options given below:
- A.Both Statement I and Statement II are correct
- B.Statement I is correct but Statement II is incorrect
- C.Both Statement I and Statement II are incorrect
- D.Statement I is incorrect but Statement II is correct
Show answer and solution
Correct option: D
Solution
Statement I is incorrect because, by IUPAC convention, the dipole moment arrow has its tail on the positive centre and the head (arrowhead) pointing toward the negative centre — opposite to what is stated. Statement II is correct: the crossed arrow (⊕→) symbolizes the direction of electron shift (from positive to negative end), indicating how charge displacement occurs in the molecule. Thus Statement I is wrong and Statement II is right.
[JEE Main 2023 · 25 Jan · Shift 2]