WorksheetsSeparation of Mixtures
Total questions: 26
Worksheet time: 14mins
In a mixture of iron fillings and Sulphur, the magnet will:
Get attracted to the iron
Get attracted to the Sulphur
Leave the particles of Sulphur
Leave the particles of iron
Sublimation happens when:
Solid changes to vapor (gas) on melting
Solid changes to liquid on melting
Solid changes to vapor (gas) on heating
The solid substance, obtained after the vapors are cooled, is known as the
(a)
A mixture of cobalt and nickel cannot be separated by magnetism
False
True
The process to separate grains from stalks os known as
Handpicking
Sieving
Threshing
Winnowing
A mixture can be in a gaseous state
True
False
If you expose naphthalene balls to air, the size ___ due to ___
a) reduces
b) sublimation
a) gets halved
b) evaporation
a) doubles
b) condensation
nothing happens to the naphthalene balls
A mixture of insoluble solids in liquids can be separated by using methods such as
Sedimentation
Filtration
Evaporation
Decantation
The process of making tea, involves the separation process of
(a)
Sieving is a method of separating a mixture of ___ sized particles by passing the through a suitable sieve
Medium
Large
Small
Various
Select the substances that sublime on heating
Iodine crystals
Camphor
Naphthalene balls
Ammonium chloride
This is an image of:
Threshing
Winnowing
Sieving
None of the following
Mixtures are usually classified on the basis of ___
a) Whether they are elements or compounds
b) If they can be separated or not
c) The state of the constituents
Both a and b
Which type of mixture is Husk and Rice?
(a)
Identify this tool
Funnel
None of these
Dish
Sieve
The liquid which passes through the filter on filtration is called
Filtration
Filtrate
Residue
Beaker
A liquid evaporates into a gas due to rise in
(a)
Which scientist won a noble prize for chemistry in 1922?
Albert Einstien
Francis William Aston
Alexander Garhmbell
Henry Cavendish
Magnetic separation only works when
There is 1 magnetic substance in the mixture
There are more than one magnetic substances in the mixture
There is no magnetic substance in the mixture
None of the following
Handpicking is a ___ technique
Easy
Hard
Time - consuming
Useless
A mixture of clay and water, can be separated by which method?
Filtration
Sedimentation
Decantation
All of the above
Identify this process
Evaporation
Condensation
Sublimation
Magnetic Field
Components of a mixture can be separated by physical means
True
False
Separation of mixtures DOES NOT remove impurities
True
False
Identify this process
None of these
Threshing
Winnowing
Beating
Liquid to vaopur is:
Evaporation
Sublimation
Condensation
