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प्रश्न
Name the following
A black non-metallic component of the mixture gunpowder.
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उत्तर
Carbon.
संबंधित प्रश्न
What is a mixture ? Give two example of mixtures.
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.
Name one pair of substances whose mixture can be separated by fractional distillation.
Name any two solid substances whose mixture can be separated by sublimation.
Define the following:
Pure substance
Give two examples of the following type of mixture.
solid-solid
A few drops of ‘Dettol’ when added to water the mixture turns turbid. Why?
How is a mixture of common salt, oil and water separated? You can use a combination of different methods.
Mixtures are impure substances.
LPG is ______ gas.
