Question

Which of the following statement(s) is/are correct regarding ionic compounds?

• A. They are good conductors of electricity at room temperature
• B. They are always more soluble in water than petrol
• C. They consists of ions
• D. They generally have high melting and boiling points

Answer 1

Answer: (B), (C), (D)

The correct options are
B They are always more soluble in water than petrol
C They consists of ions
D They generally have high melting and boiling points

Compounds formed by the transfer of electrons in their atoms are known as ionic compounds. Ionic compounds consist of ionic bonds, usually between a metal and a non – metal.

Some of the statements regarding ionic compounds that are correct are:

• The ionic bonds give rise to polarity in bonds, and as we know like dissolve like, so the ionic compounds are more soluble in polar solvents than covalent compounds. Therefore, ionic compounds are more soluble in water than petrol.
• The ionic compounds contain ions, which are cations, formed by losing electrons, and anions formed by gaining electrons. So, they consist of ions.
• As ionic bonds are formed by the transfer of electrons, these bonds are much stronger, and thus have a high melting and boiling point.