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प्रश्न
Which method is better for recovering sugar from sugar solution : evaporation or crystallisation ? Give reason
for your answer.
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उत्तर
Crystallization is a better than evaporation for recovering sugar from sugar solution. During evaporation, sugar can get charred on heating. However, in crystallization, no such problem occurs and we can get pure crystals of sugar.
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संबंधित प्रश्न
Match the following
| Column A | Column B | ||
| (a) | Molecules | (i) | Water boils |
| (b) | 100° C | (ii) | Evaporation |
| (c) | 0° C | (iii) | Changes from solid to gas |
| (d) | At all temperatures | (iv) | Matter |
| (e) | Camphor | (v) | Water freezes |
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Name a metal which has a low melting point.
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Name the process by which common salt is purified.
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Naphthalene can be separated from sand :
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From what substance has the potter made all the things?
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Rusting of an article made up of iron is called
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