Question

12.
Sodium and potassium are placed in the same group of modern periodic
table. If the molecular formula of sodium sulphate is Na2SO4, then decide
the molecular formula of potassium sulphate. Give reason for your answer.​

Answer 1

Answer:

The molecular formula of potassium sulfate is K₂SO₄.

Explanation:

The molecular formula of potassium sulfate =K₂SO₄

It is given that the formula of sodium sulfate Na₂SO₄

So, SO₄ has a valency of 2 and Na has a valency of 1.

Na and K belong to the same group, so they will be showing same valency, hence the formula K₂SO₄.

Answer 2

• The molecular formula of Potassium Sulphate is K2SO4.

Explanation:

• Since SO4 has a valency of 2 and Na has a valency of 1.

• But Na and K belongs to the same group with the valency of 1.

• So, potassium sulphate's molecular formula will be K2SO4 .