MEDIUM
9th CBSE
IMPORTANT
Earn 100
Which of the following show Tyndall effect?
(i) Milk
(ii) Salt solution
(iii) Starch solution
(iv) Solution of copper sulphate
(i) Milk
(ii) Salt solution
(iv) Solution of copper sulphate
Important Questions on Is Matter Around Us Pure? (Elements, Compounds and Mixtures)
HARD
9th CBSE
IMPORTANT
Filtration can be used to separate the components of which one of the following systems?
HARD
9th CBSE
IMPORTANT
Classify the following as solution, suspension and colloid:
Ink, Starch, Brine, Sugar in water, Paint, Dettol, Muddy water, Milk, Egg albumin in water.
EASY
9th CBSE
IMPORTANT
Name the method of separating the components of the following mixture: Oil and water (Separating funnel / Sedimentation)
EASY
9th CBSE
IMPORTANT
Name the method of separating the components of the following mixture:
Iron filings and sand. (Sedimentation / Magnetic separation)
EASY
9th CBSE
IMPORTANT
Name the method of separating the components of the following mixture: Camphor (volatile) from common salt. (Distillation / Sublimation)
MEDIUM
9th CBSE
IMPORTANT
Name the method of separating the components of the following mixture: Water and alcohol
EASY
9th CBSE
IMPORTANT
Name the method of separating the components of the following mixture:
Dyes from black ink (Paper Chromatography / Centrifugation)
MEDIUM
9th CBSE
IMPORTANT
Name the method of separating the components of the following mixture: Petrol and kerosene
(Decantation / Distillation / Filtration)
