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What Difference in the Properties of Common Salt and Sand Would Enable You to Separate a Mixture of These Two Substances ? - Science

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प्रश्न

What difference in the properties of common salt and sand would enable you to separate a mixture of these two substances ?

टीपा लिहा

उत्तर

The differences in the properties of common salt and sand that enable us to separate a mixture of these two substances are:

  1. Difference in the solubility of sand and salt. Salt is soluble in water, whereas sand is not. Therefore, we can separate sand from salt by taking water as solvent in the process of filtration.
  2. Salt is a solid that cannot vaporise. Thus, it can be obtained by the process of evaporation. In this process, all the water will evaporate leaving behind common salt.
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पाठ 2: Is Matter Around Us Pure - Very Short Answers [पृष्ठ १०६]

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लखमीर सिंह Chemistry [English] Class 9
पाठ 2 Is Matter Around Us Pure
Very Short Answers | Q 34 | पृष्ठ १०६

व्हिडिओ ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्‍न

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  2. Milk
  3. Iron
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Iron powder and sulphur powder were mixed together and divided into two parts A and B. When part A was heated strongly over a burner, then a substance C was formed. The part B was, however, not heated at all. When dilute hydrochloric acid was added to substance C, then gas D was evolved and when dilute hydrochloric acid was added to part B then gas E was evolved.

  1. What type of substance is B ?
  2. What type of substance is C ?
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  4. State one characteristic property of gas D.
  5. Write one test to identify gas E.

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  1. What type of substance could X be ? Name one substance like X.
  2. What type of substance could Y be ? Name one substance like Y.
  3. What type of substance could Z be ? Name one substance like Z.
  4. Which process involves absorption or release of an appreciable amount of energy : formation of substance X or formation of substance Z ?
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