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Compound Test - 5

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Compound Test - 5
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following are negatively charged particles?
  • Question 2
    1 / -0
    What is the charge of an atom?
  • Question 3
    1 / -0
    How many atoms are there in a water molecule?
  • Question 4
    1 / -0
    Anything that occupies space and has mass is called
  • Question 5
    1 / -0
    Which of the following is the smallest particle of matter?
  • Question 6
    1 / -0
    Which of the following substances is an element?
  • Question 7
    1 / -0
    Identify the one which is an element among following substances.
  • Question 8
    1 / -0
    Which of the following is a compound?
  • Question 9
    1 / -0
    Which of the following statements is not correct about a compound?
  • Question 10
    1 / -0
    What is the boiling point of water?
  • Question 11
    1 / -0
    Which of the following substances is a compound?
  • Question 12
    1 / -0
    Which of the following turns lime water milky?
  • Question 13
    1 / -0
    Which of the following processes is used to separate salt from water?
  • Question 14
    1 / -0
    Which of the following is not a pure substance?
  • Question 15
    1 / -0
    Which of the following is/are the major constituent of air?
    Solution
    The major constituent of air is nitrogen. It constitutes 78% of the air.
  • Question 16
    1 / -0
    Which of the following substances falls under the category of mixtures?
  • Question 17
    1 / -0
    An impure substance melts at a temperature _____ than its standard melting point.
  • Question 18
    1 / -0
    Which of the following pairs of the process involved and the change happened is correctly matched?
  • Question 19
    1 / -0
    Water obtained from which of the following sources is the purest?
  • Question 20
    1 / -0
    Which of the following changes does not represent a chemical change?
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