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प्रश्न
Define the following:
Heterogeneous mixture
उत्तर
Heterogeneous mixture: “A mixture in which the components are not uniformly distributed through its volume and can be easily seen separately is called a heterogeneous mixture.”
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संबंधित प्रश्न
Select the correct alternative from the choices given for the following statement:
Example of a homogeneous mixture is
Three mixtures A, B and C are obtained by stirring three different solids in water taken in separate beakers. When mixture A is allowed to stand for some time, then its particles settle at the bottom of the beaker. When a beam of light is passed through mixture A in a dark room, the path of light becomes visible when observed from the side of the beaker. When mixture B is allowed to stand for a considerable time, even then its particles do not settle down. Mixture B, however, scatters the beam of light just like mixture A. The particles of mixture C do not settle down on keeping and it also does not scatter a beam of light passing through it.
What are the mixtures like A known as ?
What are the mixtures like B known as ?
What are the mixtures like C known as ?
Name the phenomenon exhibited by A and B which occurs on passing a beam of light through them.
Name one mixture each which is like (i) A (ii) B, and (iii) C.
How will you separate common salt, sand and iron filings from their mixture ?
Fill in the blanks
Mist is a _________ mixture of droplets of water and air.
Tick (√) the correct alternative from the choice given for the following statement:
Example of a homogeneous mixture is
State whether the following statement is true or false. If false write – the correct statement.
Heterogeneous mixtures have different composition and properties throughout the mixture.
Name the following:
The component of a naphthalene-sodium chloride mixture, which remains in the evaporating dish when heated together, covered with a funnel.
Make a fruit or vegetable salad. Give reasons why you think it is a mixture.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Potassium chloride and ammonium chloride
You are given two samples of water labelled as ‘A’ and ‘B’. Sample ‘A’ boils at 100°C and sample ‘B’ boils at 102°C. Which sample of the water will not freeze at 0°C? Comment.
