Which of the following molecules has a polar covalent bond? (2023) 2023
Practice Questions
Q1
Which of the following molecules has a polar covalent bond? (2023) 2023
Cl2
H2O
CH4
O2
Questions & Step-by-Step Solutions
Which of the following molecules has a polar covalent bond? (2023) 2023
Step 1: Understand what a polar covalent bond is. A polar covalent bond occurs when two atoms share electrons unequally due to a difference in their electronegativity.
Step 2: Identify the atoms in the molecule. In water (H2O), there are two hydrogen atoms and one oxygen atom.
Step 3: Look up the electronegativity values. Oxygen has a higher electronegativity than hydrogen.
Step 4: Determine the difference in electronegativity. Since oxygen attracts electrons more strongly than hydrogen, the shared electrons are closer to the oxygen atom.
Step 5: Conclude that the bond between hydrogen and oxygen in water is polar because of this unequal sharing of electrons.
