Which is true of ionic compounds?

Question

A.They contain no charged particles.

B.They form hard, brittle crystals with characteristic shapes.

C.They have characteristically low melting and low boiling points.

D.They are electrically charged, either positive or negative.

Answer 1

The correct statement about ionic compounds is:

B. They form hard, brittle crystals with characteristic shapes.

Here's a brief explanation of the other options:

A. They contain no charged particles. - This is false; ionic compounds consist of charged particles known as ions (cations and anions).

C. They have characteristically low melting and low boiling points. - This is also false; ionic compounds typically have high melting and boiling points due to the strong electrostatic forces between the ions.

D. They are electrically charged, either positive or negative. - This is misleading; while ionic compounds are made of charged particles (cations and anions), the compound itself is electrically neutral overall.