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प्रश्न
Explain why, a solution of salt in water is considered a mixture and not a compound.
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उत्तर
Solution of salt in water is a mixture and not compound because salt solution is made up of salt and water, mixed physically.
- The constituents of salt solution might be present in varying ratios.
- Salt solution does not have fixed properties. Its properties depend on the nature of its components and the ratios in which they are mixed.
- The constituents of salt solution can be separated easily by physical methods, i.e., distillation.
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संबंधित प्रश्न
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.
Give two examples.
Homogeneous mixture
Name the components present in the following mixture:
Bronze
Tick (√) the correct alternative from the choice given for the following statement:
Example of a homogeneous mixture is
Tick (√) the correct alternative from the choice given for the following statement:
A set of the mixture is
State the technique involved in separating the following:
Iodine crystals and potassium chloride
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
Select the correct answer from the choice in the bracket.
A homogenous mixture.
Write the sequence of steps you would use for making tea. (Use the words: mixture, dissolve, filtrate and residue).
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 ______.
