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प्रश्न
Write “true” or “false” for the following statement
Steel is an alloy of iron and aluminum.
विकल्प
True
False
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उत्तर
False
Correct Statement: Steel is an alloy of iron and carbon.
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संबंधित प्रश्न
Which of the following is not a mixture ?
Which one of the following is most likely to exhibit Tyndall effect ?
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.
A mixture contains water, kerosene and sand. How will you separate this mixture ?
Give two examples.
Homogeneous mixture
Give one example of the following type of mixture.
Solid-liquid heterogenous mixture
Write “true” or “false” for the following statement
Common salt is separated from its solution in water by decantation.
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:
A mixture of two immiscible liquids
Under which category of mixtures will you classify alloys and why?
