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प्रश्न
Select homogeneous and heterogeneous mixtures from the following:
The salt solution, petrol, and water, sand, and charcoal, alcohol and water, air dissolved in water, air, seawater, fruit juices, mist, brass.
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उत्तर
Homogeneous mixture: Salt solution, alcohol, and water, air dissolved in water, seawater, brass.
Heterogeneous mixture: Sand and charcoal, air, fruit juice, mist, petrol, and water.
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संबंधित प्रश्न
Name any two solid substances whose mixture can be separated by sublimation.
Name one pair of substances whose mixture can be separated completely by distillation.
Give reason:
Why do petrol and water form a heterogeneous mixture?
Give reason:
Why sulphur does dissolve when carbon disulphide is added to a mixture of iron and sulphur but not when it is added to iron sulphide?
Name the components present in the following mixture:
Crude petroleum oil
Why do we need pure substances?
Give one example of the following type of mixture.
Solid-liquid heterogenous mixture
Write “true” or “false” for the following statement
Winnowing is a process to remove small stones from grains.
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
A mixture of chloroform and water are taken in a separating funnel is mixed and left undisturbed for some time. The upper layer in the separating funnel will be of ______ and the lower layer will be that of ______.
