How many atoms are present in a molecule of $$\text{Ca(OH)}_2$$​?

Correct option is B

The correct answer is (b) 5

Explanation:

·       A molecule of calcium hydroxide is written as Ca(OH)₂.

·       Calcium (Ca): 1 atom.

·       Oxygen (O): The subscript "2" outside the bracket multiplies oxygen → 2 atoms.

·       Hydrogen (H): The same subscript "2" multiplies hydrogen → 2 atoms.

·       Total atoms = 1 + 2 + 2 = 5 atoms.

Information Booster:

·       Calcium hydroxide is commonly known as slaked lime.

·       It is widely used in neutralizing acidic soils, whitewashing, and water treatment.