A substance X which is an oxide of a metal is used intensively in the cement industry. This element is present in bones also. On treatment with water it forms a solution which turns red litmus blue. Identify X and also write the chemical reactions involved.

A substance X which is an oxide of a metal is used intensively in the

1.	A substance X which is an oxide of a metal is used intensively in the cement industry. This element is present in bones also. On treatment with water it forms a solution which turns red litmus blue. Identify X and also write the chemical reactions involved.
Answer» Solution :The substance X is calcium oxide, CAO. The element calcium is PRESENT in bones. On treatment with water, it produces calcium hydroxide as under: `CaO + H_2O + CA(OH)_2` Calcium hydroxide is a base. It turns red LITMUS blue.