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CDS - Matter Test 1410
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CDS - Matter Test 1410
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  • Question 1/5
    1 / -0.33
    Which of the following is an amorphous solid?
    Solutions
    Quartz glass (SiO2) is an amorphous solid due to its short range order of constituent particles.
  • Question 2/5
    1 / -0.33
    Which of the following is not a property of a crystalline solid?
    Solutions
    In solids, constituent particles of matter are arranged in a specific manner which is called crystalline solids. These solids contain crystals in which these are having a definite geometry. There is a sharp freezing point in crystalline solids. This is because the distance between the same atoms or molecules or ions remains the same and constant.
  • Question 3/5
    1 / -0.33
    A substance changes from a solid to a gas without going through the liquid phase – this process called sublimation. Which of the following does not shows sublimation-
    Solutions

    Through sublimation, a substance changes from a solid to a gas, this never goes through the liquid phase. Examples of solids that are sublime are dry ice (solid carbon dioxide), iodine, arsenic, and naphthalene. In practice metals, salts and polymers are considered as substances that are not indifferent under non-peak conditions.

  • Question 4/5
    1 / -0.33
    Which among the following is produced by particles of spray liquids any by condensation of vapours in the air?
    Solutions
    Mists are produced by particles of spray liquids any by condensation of vapours in air. For example- sulphuric acid mist. Mist is defined as a small droplets of water hanging in the air. These droplets form when warmer water in the air is rapidly cooled, which causing it to change from invisible gas to tiny visible water droplets.
  • Question 5/5
    1 / -0.33
    Which of the characteristics of particles of matter is not true?
    Solutions

    Only the other three properties of particles of matter are correct. Particles of matter attract each other, they have space between them and they are continuously moving. But particles of matter do not repel each other. If it was so, then we could not have been able to see matter around us.

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