Q:

Petroleum refining involves 

(A) Vaccum distillation 

(B) Fractional distillation 

(C) Steam distillation 

(D) Simple distillation

UPSEE

All Replies

Viewing 1 replies (of 1 total)

Viewing 1 replies (of 1 total)

  • You must be logged in to reply to this topic.