Question

Which molecule or compound below contains an ionic bond? OCl2 SiF4 AlCl3 CO2

Answer 1

The bond formed between metal and non-metal is called an ionic bond.

Eg. NaCl, Here, Na⁺ is the sodium (metal) cation and Cl^- is chlorine (non-metal) anion.

The bond formed between two non-metals is called a covalent bond.

Eg. PCl₃, Here "P" and "Cl" both are non-metals.

Now, given compounds,

1) OCl₂ = Oxygen and Chlorine are non-metals thus OCl₂ contains covalent bond.

2) SiF₄ = Silicon and fluorine are non-metals, thus SiF₄ contains covalent bond.

3) AlCl₃ = Aluminium is a metal and Chlorine is a non-metal, thus AlCl₃ contains an Ionic bond.

4) CO₂ = Carbon and oxygen are non-metals, thus CO₂ contains covalent bond.