Question

Which of the following molecules has a covalent bond?
1️⃣ Cl₂
2️⃣ CaO
3️⃣ MgCl₂
4️⃣ NaCl​

Answer 1

Answer:

1️⃣ Cl₂

Explanation:

a single molecule of chlorine has 7 electrons in its outermost shell it shares it one electron to other atom of chlorine and the other one also share one electron with it