Question

For given processes, choose the correct order of purity of silicon obtained.
I.`SiO_(2)+2C to Si + 2CO`
II.`Si("pure")+2Cl_(2) to Si +MgCl_(2)`
III.`Na_(2)[SiF_(6)]+4Na to 6NaF + Si to` Zone refined `Si`
A. `I gt Ii gt III`
B. `III gt II gt I`
C. `I = II = III`
D. `II lt I lt III`

Answer 1

Correct Answer - B