For manufacturing of K₂O which of the following is used

A. Kaolinite

B. Biotite

C. Gibssite

D. Pyrite

Answer: Option B

Solution(By Examveda Team)

For manufacturing of K₂O, Biotite is used.
Biotite is a common group of phyllosilicate minerals within the mica group. Its chemical formula is K(Mg, Fe)₃AlSi₃O₁₀(F, OH)₂.
It is regarded as a mineral species by the International Mineralogical Association until 1998.