Question

What is the chemical formula of borax?

• A. $N{a}_2{B}_4{O}_7.10H_{2}O$
• B. $N{a}_2{B}_4{O}_7.11H_{2}O$
• C. $N{a}_2{B}_4{O}_7.12H_{2}O$
• D. None of these

Answer 1

The correct option is A $N{a}_2{B}_4{O}_7.10H_{2}O$

Borax($N{a}_2{B}_4{O}_7.10H_{2}O$), also known as sodium borate, sodium tetraborate, or disodium tetraborate, is an important boron compound, a mineral, and a salt of boric acid. Powdered borax is white, consisting of soft colorless crystals that dissolve in water.

Boron is not much abundant in nature and occurs to an extent of 9 ppm in the earth's crust. Borax is an important mineral of Boron.