Which compound has dipolar intermolecular forces?

B. P-Cl

A molecule that has dipole intermolecular forces has to be polar. In other words, only polar molecules can engage in dipole-dipole interactions. For a molecule to be polar, it has have a non-zero net dipole.

For that, it should contain polar bonds that provide the dipole moment. A bond is polar if it connects atoms of two different elements. For example, C-H is polar but H-H is not. So is that case with double bonds such as C=O, which is also polar.

In case there are more than one polar bond in a single molecule, dipole from each of those bonds will add as if they are vectors. They could well balance each other if they have equal strengths, and are placed symmetrically. For example, C=O bonds in molecule C are polar. Each one of them carries a dipole moment. However, the two C=O bonds in the molecule are directed at each other. Their dipole moments have the same strength. However, they balance each other out within the molecule. The molecule will have no net dipole. As a result, it has no dipole-dipole interactions.

The only bond in molecule A is nonpolar. It has no dipole moment and no net dipole. As a result, it has no dipole-dipole interactions.

The P-Cl bond in molecule B is polar. There's no other polar bond (no other bond at all) to balance the dipole moment of that P-Cl bond. The molecule has a net dipole, is polar, and have dipole intermolecular forces.

As mentioned above, molecule C is nonpolar. It has dipole-dipole intermolecular forces.

Dipole moments due to the C-H bonds balance out each other in molecule D. The molecule will be nonpolar. It has no dipole-dipole intermolecular forces.

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.