Boron content in borax (suhaga) is

Answer: Option A

It is found that boron content in its natural deposit in the form of borax is about 11%.
Borax is a salt, a colourless crystalline solid that dissolves in water to make a basic solution. Borax is a combination of Boron, sodium and oxygen. It is commonly available in powder or granular form and has many industrial and household uses, also as pesticides.