Question

Which of the following are not ionic compounds?

• A. $KCl$
• B. $HCl$
• C. $CC{l}_4$
• D. $NaCl$

Answer 1

Answer: (B), (C)

$CC{l}_4$

Ionic compounds:

• Ionic compounds are those compounds that are formed by ionic bonds that are formed by the complete transfer of electrons.
• Ionic compounds dissociate into their constituents ions when dissolved in water.

Covalent compounds:

• Covalent compounds are those compounds that consist of covalent bonds that are formed by the mutual sharing of electrons between atoms.
• Covalent compounds do dissociate into their constituents ions when dissolved in water.
• Covalent compounds dissolve in organic solvents like ether and alcohol.

Explanation for the correct option:

Option B: $HCl$

• Hydrochloric chloride gas$\left(HCl\right)$ is made of molecules that are held together by the covalent bonds between Hydrogen and chloride.

Option C: $CC{l}_4$

• Carbon tetrachloride$\left(CC{l}_4\right)$ is a covalent compound that is formed by the sharing of electrons between Carbon and chlorine atoms.
• Carbon tetrachloride is a covalent chemical that dissolves in organic solvents such as ether and alcohol.

Explanation for the incorrect

Option A: $KCl$

• Potassium chloride$\left(KCl\right)$is an ionic compound that dissociates into its ions in the aqueous solution.

Option D: $NaCl$

• Sodium chloride$\left(NaCl\right)$ is an ionic compound that dissociates into its ions in the aqueous solution.

Therefore, the correct option is (B) and (C).