The correct sequence for the procedure adopted for making a pure

the-correct-sequence-for-the-procedure-adopted-for-making-a-pure

The correct sequence for the procedure adopted for making a pure elemental semiconductor consist of ___________

A. Preparation of ultrapure Si or Ge >> Doping >> Preparation of single crystals of Si or Ge

B. Doping >> Preparation of ultrapure Si or Ge >> Preparation of single crystals of Si or Ge

C. Preparation of ultrapure Si or Ge >> Preparation of single crystals of Si or Ge >> Doping

D. Preparation of single crystals of Si or Ge >> Preparation of ultrapure Si or Ge >> Doping

The question was posed to me during an online exam.

Asked question is from Functional Materials in division Materials and their Properties of Engineering Chemistry I

Right answer is C. Preparation of ultrapure Si or Ge >> Preparation of single crystals of Si or Ge >> Doping

For explanation I would say: The correct sequence for the procedure adopted for making a pure elemental semiconductor consist of: Preparation of ultrapure Si or Ge>>  Preparation of single crystals of Si or Ge>> Doping