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Elements ,compounds and mixtures

Quiz by Aparna Singh

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15 questions
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  • Q1
    If a drink tells you to" SHAKE WELL" before drinking,the mixture in the container is
    heterogeneous
    homogeneous
    60s
  • Q2
    State true or false. properties of compounds will be the same as the properties of the elements that make up the compound
    True
    False
    60s
  • Q3
    Sodium chloride can be broken down into simpler substance by chemical means.so it is
    a compound
    an atom
    a mixture
    an element
    60s
  • Q4
    Study the diagram representing elements,compounds and mixtures shown.Choose the correct statement from the following
    Question Image
    Y represents a compound and Z represents a mixture
    Y represents an element and W represents a mixture
    X represents an element and W represents a mixture.
    X represents an element and Z represents a mixture
    60s
  • Q5
    The smallest part of a compound which still has the properties of that compound is called
    solid
    molecule
    mixture
    atom
    60s
  • Q6
    Which of the following is made up only of one type of atom?
    Tomato ketchup
    A drop of water
    Aluminium foil
    A crystal of table salt
    60s
  • Q7
    Elements are sometimes written with two letters. Magnesium is one of these elements.
    MG
    mG
    Mg
    mg
    60s
  • Q8
    When iron filings and sulphur powder are mixed together at room temperature, which one of the following statements is correct?
    The sulphur may be separated from the mixture by dissolving it in water
    The iron may be separated from the mixture by using a magnet.
    A new compound called iron sulphide is formed.
    They cannot be separated from each other
    60s
  • Q9
    A beaker containing a black-yellow powder has a magnet put into it. When the magnet is removed, black particles are stuck to it, leaving a yellow powder behind in the beaker. The black-yellow powder is therefore
    an atom
    a mixture
    a compound
    an element
    60s
  • Q10
    A molecule is defined as the smallest part of an element or compound that can exist on its own. Which one of the following is not a molecule?
    Sodium (Na)
    Water (H2O)
    Hydrogen (H2)
    Sodium chloride (NaCl)
    60s
  • Q11
    Which one of the following statements about compounds is correct?
    It is easy to separate a compound into the elements that it is made from.
    The properties of a compound are the same as the properties of the elements of which it is made up
    The elements in a compound are always present in the same ratio.
    At least one of the elements in and mixture must be a gas.
    60s
  • Q12
    Identify the pure substances.
    Wet tissue paper
    tap water
    air
    Common Salt
    60s
  • Q13
    Frying pans are usually made from metals. Choose the correct property of metals that corresponds to the function of the above statement.
    Metals have lustre.
    Metals are malleable
    Metals are good conductor of heat
    Metals are sonorous
    60s
  • Q14
    Copper wire is an example of
    a molecule
    an element
    an atom
    a compound
    60s
  • Q15
    Identify the correct symbol for Carbon
    C
    Cu
    Cl
    Co
    60s

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