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प्रश्न
With reference to the mixture of iron and sulphur, state the main characteristics of the mixture.
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उत्तर
The main characteristics of the mixture (Iron + Sulphur) are:
- The mixture of iron and sulphur may contain iron and sulphur in varying proportions.
- The original properties of each element are retained in the mixture of iron and sulphur.
- The mixture of the two elements iron and sulphur can be separated by i.e. a physical method, i.e. by using a magnet since iron is attracted to the magnet.
संबंधित प्रश्न
What is a mixture ? Give two example of mixtures.
Which of the following is not a mixture ?
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.
The chemical which can be used to separate a mixture of carbon powder and sulphur powder successfully is :
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?
Fill in the blanks
The substances that make a mixture are called its ______or_________.
Match the statements in List I with the correct answer in List II.
| List I | List II |
| 1. Purification of water by adding alum | A: Sublimation |
| 2. Seawater leaving behind common salt | B: Sieving |
| 3. Separation of camphor and potassium chloride | C: Filtration |
| 4. Separation of charcoal from a charcoal-water mixture | D: Sedimentation |
| 5. Separation of bran and wheat flour | E: Evaporation |
Differentiate between a homogenous and a heterogeneous mixture with one example of each in the (a) solid-solid (b) solid-liquid If (c) liquid-liquid state of the mixture.
Give the characters a mixture.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
