Dipole Moments | MCQs

Explanation

Explanation

The dipole moment of H₂O (water) is approximately 1.83 Debye.

This is due to the bent shape and the difference in electronegativity between hydrogen and oxygen.

Explanation

The molecule that is polar and has a dipole moment of 5.33 x 10^-30 Cm is SO2 (sulfur dioxide).

Explanation

When a dipole with dipole moment $vec{p}$ is placed in an external electric field $vec{E}$, the torque experienced by the dipole is given by:

$$vec{tau} = vec{p} times vec{E}$$

This is a vector cross product, so:

• The magnitude is $tau = pE sintheta$

• The direction is perpendicular to both p​ and E (using the right-hand rule)

Explanation

Dipole moment of H2 =0 ( zero ).

The ionic character exists in H2 molecule but no dipole moment or bond moment exists permanently.

In these diatomic molecules, the shared pair of electrons lies between the nucleus of the two bonded atoms.

Hence, no separation of charges occurs. I.e., these molecules have zero dipole moment.