quiz 1

Question 1

fractional distillation is always different from the distillation dueto the presence of ?

Answer 1

fractioning column

Question 2

initially what is the temp at-the top of the column than at its bottom?

Answer 2

lesser

Question 3

much suitable for the fractional distillation process is?

Answer 3

oil bath

Question 4

the beads are provided in a fractional column for which reason?

Answer 4

vapors to condense

Question 5

which of the following is incorrect?
the fractioning columns are always available according to the on fixed standard
the fractioning columns are-always available in different designs and size
fractional distillation is the process of separating the different gases from air
the simple fractioning column is a tube always packed with glass beads

Answer 5

the fractioning columns are always available according to the on fixed standard

Question 6

which gas can not be separated from air using fractional distillation?

Answer 6

helium

Question 7

fractional distillation separates two liquids for which the difference in boiling point is less than

Answer 7

25K

Question 8

fractional distillation is a process of separation of which of the following?

Answer 8

2 miscible liquids

Question 9

what are the number of steps for separation of two liquids in fractional distillation?

Answer 9

2 steps
evaporation
condensation

Question 10

fractional distillation is use to separate two miscible liquids that differ in what?

Answer 10

boiling point

Question 11

what is the first physical process to happen in distillation?

Answer 11

evaporation

Question 12

the compound that contains only hydrogen and carbon is known as?

Answer 12

hydrocarbon

Question 13

what happens to a crude oil fraction when its temp falls below its boiling point?

Answer 13

it condensates

Question 14

evaporation turns a

Answer 14

liquid into gas

Question 15

condensation turns a

Answer 15

gas to liquid