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प्रश्न
Which one of the following is most likely to exhibit Tyndall effect ?
विकल्प
sugar and water mixture
potash alum and water mixture
chalk powder and water mixture
potassium permanganate and water mixture
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उत्तर
chalk powder in water mixture
Chalk in water will most likely scatter the beam of light when passed through it because it forms a suspension.
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संबंधित प्रश्न
Fill in the following blanks with suitable words :
Brine is a ..............whereas alcohol is a...............
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 any two solid substances whose mixture can be separated by sublimation.
Give two examples of the following type of mixture.
solid-liquid
Name four substances that can be used as filters.
Milk is a ______.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Mercury and water
A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called ______.
Supernatant denotes the heterogeneous mixture, lying above a solid residue, after crystallization, precipitation, centrifugation, or another process.
The salt solution is an example of a heterogeneous mixture.
