Sodium and potassium are stored in kerosene. Why?

The hydroxides and carbonates of sodium and potassium are easily soluble in water while the corresponding salts of magnesium and calcium are sparingly soluble in water. Explain.

(A) : Sodium metals is stored in kerosene (R): The density of sodium is less than water

Give reasons (a) Platinum, gold and silver are used to make jewellery. (b) Sodium, potassium and lithium are stored under oil. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Symbol of potassium

Sodium-potassium pump transports

Sodium is tarnished in air. Why?

Sodium catches fire in water. Why?

Sodium and potassium are chemically similar, but their biological roles are different. Why?

Sodium atoms and sodium ions

Why is sodium kept immersed in kerosene oil?