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Question-1
The solvent used to remove nail varnish and grease.
(A)
Ethanol
(B)
Benzene
(C)
Water
(D)
Propanone
Question-2
The solubility of the solute increases with increase in:
(A)
Pressure
(B)
Concentration
(C)
Temperature
(D)
Volume
Question-3
The substance that is left behind on the filter paper after filtration is called:
(A)
Filtrate
(B)
Residue
(C)
Centrifugate
(D)
Solute
Question-4
When solute is added to solvent in small amounts, there comes a time when no more solute will dissolve. Then solution is said to be:
(A)
Saturated
(B)
Unsaturated
(C)
Steady state
(D)
Concentrated
Question-5
An example for gas - gas mixture.
(A)
Smoke
(B)
Air
(C)
Water vapour
(D)
Ash
Question-6
A liquid that does not dissolve in a solvent is said to be:
(A)
Miscible
(B)
Immiscible
(C)
Dilute
(D)
Concentrated
Question-7
Very small insoluble particles in a liquid may be separated from it using a:
(A)
Filtrate
(B)
Residue
(C)
Centrifuge
(D)
Solute
Question-8
Water and ethanol can be separated by:
(A)
Fractional distillation
(B)
Distillation
(C)
Chromatography
(D)
Separating funnel
Question-9
A mixture of tiny droplets of fatty oil in water.
(A)
Paint
(B)
Blood
(C)
Milk
(D)
Ash
Question-10
Where water vapour in the air condense above the cool surface of a lake or a field, it forms:
(A)
Fog
(B)
Air
(C)
Emulsion
(D)
Smoke
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Cambridge Secondary Grade 8
IGCSE
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Patterns of Reactivity
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