Question

a substance X an oxide of element is used extensively in cement industry element is present in bother also on the treatment with water it forms solution Which turn red litmus blue identify X and write a chemical reaction

Answer 1

Surely the substance x is Calcium oxide and the chemical equation is:
Cao + H2O ➡Ca (OH)2

Answer 2

Hey friend !!

The substance X is calcium .

Its oxide , that is calcium oxide (CaO) is used in the cement industry .

Also , when water (H₂O) is added to it , it forms a solution of calcium hydroxide , Ca(OH)₂.

Chemical equation :-

CaO + H₂O ------> Ca(OH)₂ + heat energy

Hope this Helps You !!!