MEDIUM
Earn 100

method is used for separating tea leaves from the tea.

62.5% studentsanswered this correctly

Important Questions on Separation of Substances

EASY
Which of the following compound can not be sublimed?
EASY
Which of the following does not undergo sublimation?
HARD
How will you obtain clear water from the muddy water, if you are provided with two glass tumblers and no other equipment?
HARD
Describe sedimentation and decantation with the help of diagrams.
HARD
Define sublimation. Describe an experiment to show the sublimation of a solid substance. Name two substances from your daily life that sublime on heating.
HARD
Differentiate between threshing and winnowing?
MEDIUM

Define the following with examples:

a. Sublimation.

b. Evaporation.

EASY
Winnowing helps to remove heavy impurities.
EASY
Two miscible liquids can be separated by the process of decantation.
MEDIUM

Squeeze some drops of lime into a glass of milk. You will see a whitish solid forming after some time. Place a thin cloth over a bowl and pour the liquid on it. The white solid is left behind on the cloth and liquid collects in the bowl.

_____ is the process represented by adding lime to milk.

Question Image

MEDIUM
Which method is used for cleaning pulses and rice?
EASY
Name the process by which water is separated from rice and pulses after washing them.
EASY
Draw a sketch for an experimental set-up for sublimation.
MEDIUM

Fill in the blank space by choosing correct words from the list given below . 
List : evaporation, churning, threshing, sieving, sedimentation, winnowing, condensation, hand-picking. 

Corn is separated from husk by the process of _____.

MEDIUM
During loading this chemical substance is added to improve sedimentation.
EASY

Name the following:
The process of pouring out the liquid without disturbing the sediments.

MEDIUM
A student was given one packet containing white crystals of sodium chloride and another packet containing white crystals of ammonium chloride for carrying out a project. But he forgot to label the packets. One of his friends suggested him to carry out sublimation on each sample and to identify the sublimable solid. He then helped the student to set up the apparatus for carrying out sublimation and then jointly carried out sublimation of each sample separately.
A. Define sublimation.
B. What are sublimable solids? Give two examples of sublimable solids.
C. State the values demonstrated by the fellow student in helping his friend to identify the samples.
EASY
Which substance undergo sublimation process -
EASY
Choose the correct statement of the following