Fractional Distillation

Question 1

Fractional distillation is a process of separation of ____________
a) 2 miscible liquids
b) 2 immiscible liquids
c) 1 miscible and 1 immiscible liquid
d) None of the mentioned

Answer 1

a) 2 miscible liquids

Question 2

The difference in boiling point of 2 liquid in fractional distillation is ______
a) Greater than 25 K
b) Less than 25 K
c) Equal to 25 K
d) None of the mentioned

Answer 2

b) Less than 25 K

Question 3

A simple fractional tube is packed with ____________
a) Wooden beads
b) Plastic beads
c) Metal beads
d) Glass beads

Answer 3

d) Glass beads

Question 4

Fractional distillation is different from distillation because of the presence of
____________
a) Fractionating column
b) Condenser
c) Distillation flask
d) Conical flask

Answer 4

a) Fractionating column

Question 5

The beads are provided in fractional column for ____________
a) Vapours to generate
b) Vapours to condense
c) Vapours to evaporate
d) All of the mentioned

Answer 5

b) Vapours to condense

Question 6

Select the incorrect statement from the following options.
a) Fractionating columns are available in various design and size
b) Fractionating columns are available according to one fixed standard
c) A simple fractionating column is a tube packed with glass beads
d) Fractional distillation is the process of separation of different gases from air

Answer 6

b) Fractionating columns are available according to one fixed standard

Question 7

Which of the following gases cannot be separated from air using fractional
distillation?
a) Argon
b) Oxygen
c) Helium
d) Nitrogen

Answer 7

c) Helium

Question 8

Initially, the temperature at the top of the column is _______________ than at its
bottom.
a) Greater
b) Lesser
c) Equal
d) None of the mentioned

Answer 8

b) Lesser

Question 9

Which of the following is more suitable for fractional distillation process?
a) Oil bath
b) Water bath
c) Glycerine bath
d) None of the mentioned

Answer 9

a) Oil bath

Question 10

Number of steps required for the separation of two liquids in fractional distillation is _________
a) 1
b) 2
c) 3
d) 4

Answer 10

b) 2