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States of Matter Test - 3

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States of Matter Test - 3
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is highly compressible?
    Solution
    Gaseous state of matter has the maximum compressibility.
    Oxygen being a gas is highly compressible.
  • Question 2
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    Which of the following is a compound?
  • Question 3
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    Which of the following is a polyatomic element?
  • Question 4
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    Which of the following is not a metalloid?
    Solution
    Au is the symbol of gold, which is a metal.
    Arsenic (As), Germanium (Ge) and Antimony (Sb) are metalloids and have properties intermediate between those of metals and non-metals.
  • Question 5
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    Which of the following is responsible for the cooling of water kept in an earthen pitcher during summer days?
  • Question 6
    1 / -0
    An electric bulb, on long use, forms a black coating on its inner surface due to
    Solution
    An electric bulb, on long use, forms a black coating on its inner surface due to sublimation of tungsten. Due to excessive use, evaporated tungsten atoms tend to deposit on the upper part of the filament envelope (cathode) giving it a black coating.
  • Question 7
    1 / -0
    Which of the following is an element?
    Solution
    Iodine is an example of an element.
  • Question 8
    1 / -0
    Which of the following has the maximum intermolecular forces of attraction?
  • Question 9
    1 / -0
    Why does cotton cloth cause cooling?
  • Question 10
    1 / -0
    Why is it difficult to break an iron nail?
    Solution
    Iron nail being a solid has strong forces of attraction between its molecules. Therefore, molecules of iron nail are held together by strong forces. Hence, it is not easy to break an iron nail.
  • Question 11
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    Why is sponge compressible although it is a solid?
  • Question 12
    1 / -0
    Why does steam cause more severe burns than boiling water?
  • Question 13
    1 / -0
    In which of the following cases is cooking very slow?
  • Question 14
    1 / -0
    Which of the following expands on melting?
  • Question 15
    1 / -0
    What kind of solution is a tincture of iodine?
    Solution
    A tincture of iodine is a solution of iodine (solid) in alcohol (liquid) as the solvent.
    The solutions with alcohol as the solvent are referred to as tinctures.
  • Question 16
    1 / -0
    Which of the following is the reason for high diffusibility of gases?
  • Question 17
    1 / -0
    Which of the following is a mono-atomic element?
  • Question 18
    1 / -0
    Why does balloon burst with a sound when it is pricked with a needle?
  • Question 19
    1 / -0
    Which of the following is known as dry ice?
    Solution
    Solid CO2 is also known as dry ice. Carbon dioxide is a gas at room temperature and atmospheric pressure, but becomes a liquid under sufficiently high pressure. If the pressure is reduced, the temperature drops and the liquid carbon dioxide solidifies into a snow-like substance at the temperature –78°C.
  • Question 20
    1 / -0
    Which of the following has the highest kinetic energy?
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