Question

which of the following is an example of a covalent bond?answer:a k - clb al - clc h - cld al - al

Explanation:

• A covalent bond is formed when atoms share electrons.
• In \(K - Cl\), it is an ionic bond (metal \(K\) and non - metal \(Cl\)).
• In \(Al - Cl\), although there is some covalent character due to polarization (Fajan's rules), it is mainly an ionic - like bond (metal \(Al\) and non - metal \(Cl\)).
• In \(H - Cl\), hydrogen (\(H\)) and chlorine (\(Cl\)) are non - metals. They share electrons to form a covalent bond.
• In \(Al - Al\), it is a metallic bond (between metal atoms).

Answer:

C. \(H - Cl\)