The chemical formula $$K_2SO_4$$​represents-

Correct option is A

The correct answer is (a) Potassium sulphate.
· K₂SO₄ is the chemical formula for Potassium sulphate, a salt commonly used in fertilizers.
· It provides potassium and sulfur—two essential nutrients for plants. Potassium supports water regulation in plants, while sulfur aids in protein formation.
· Potassium sulphate is preferred for chloride-sensitive crops because it doesn’t contain harmful chloride.
· It is easily soluble in water, making it efficient in agricultural applications. This compound is known to improve the quality of fruits and vegetables.
Additional Knowledge:
· Potassium chloride: Also a potassium-containing salt, but it can add chloride to the soil, which some crops are sensitive to.
· Potassium nitrate: A compound with the formula KNO₃, used as a fertilizer and in fireworks, providing both potassium and nitrogen.
· Aluminium sulphate: Known as Al₂(SO₄)₃, it is used in water purification and in the paper industry, not related to potassium.