Question

which of the following is an ionic compound?
o a co₂
o b. h₂o
o c. rbcl
o d. ch₄

Explanation:

Ionic compounds are formed by the transfer of electrons from a metal to a non - metal.

• \(CO_2\) is a covalent compound as it is formed by the sharing of electrons between non - metals (carbon and oxygen).
• \(H_2O\) is a covalent compound formed by the sharing of electrons between non - metals (hydrogen and oxygen).
• \(RbCl\) is an ionic compound. Rubidium (\(Rb\)) is a metal and chlorine (\(Cl\)) is a non - metal. Rubidium donates an electron to chlorine to form \(Rb^+\) and \(Cl^-\) ions.
• \(CH_4\) is a covalent compound formed by the sharing of electrons between non - metals (carbon and hydrogen).

Answer:

C. \(RbCl\)