Question

Chemical formula of water is

• A. HO
• B. \( H_2O \)
• C. \( HO_2 \)
• D. \( H_2O_2 \)

Hint:

Water's chemical formula, \( H_2O \), is one of the simplest but most vital compounds in the world.

Answer 1

The Correct Option is B

Step 1: Chemical Composition of Water.
Water is composed of two hydrogen atoms (H) and one oxygen atom (O), which combine in a 2:1 ratio to form the molecule H\(_2\)O.
Step 2: Why Other Options are Incorrect.
- (A) HO: This is incorrect because the correct formula is \( H_2O \), indicating two hydrogen atoms and one oxygen atom.
- (C) \( HO_2 \): This formula refers to hydrogen and oxygen in a different bonding form, which does not represent water but rather a different compound.
- (D) \( H_2O_2 \): This is incorrect because \( H_2O_2 \) is the formula for hydrogen peroxide, not water.
Step 3: Conclusion.
The correct formula for water is \( H_2O \), so the answer is (B).