Question

What is the value of dipole moment for HCl molecule?

• A. 1.91 D
• B. 1.03 D
• C. 1.85 D
• D. 3.33 D

Hint:

To calculate the dipole moment of a molecule, use the formula \(\mu = Q \times r\), where \(Q\) is the charge difference and \(r\) is the bond length.

Answer 1

The Correct Option is B

Step 1: Understanding dipole moment.
The dipole moment (\(\mu\)) of a molecule depends on the difference in electronegativity between the atoms and the distance between them. In HCl, chlorine is more electronegative than hydrogen, creating a dipole.
Step 2: Analyzing the options.
(A) 1.91 D: Incorrect. This is too high for HCl's dipole moment.
(B) 1.03 D: Correct. This is the actual dipole moment value for the HCl molecule.
(C) 1.85 D: Incorrect. This value does not match the dipole moment of HCl.
(D) 3.33 D: Incorrect. This value is much too high for HCl.
Step 3: Conclusion.
The correct answer is (B) 1.03 D, which is the dipole moment of the HCl molecule.