Question

(a)
22. Which of the following involves fractional distillation?
(i) Separation of constituents from liquefied air
(i) Separation of constituents from crude petroleum
(iii) Separation of carbon tetrachloride from water
(iv) Separation of naphthalene from common salt
(a) (i) and (iii)
(b) (i) and (iv)
(c) (i) and (iv)
(d) (i) and (ii)
IS MATTER AROUND US PURE​

Answer 1

Answer:

a is correct. I think.k

Answer 2

option D

i think separation of constituents from liquefied air

and

separation constituents from crude petroleum