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Basic definition of Chemistry

Quiz by Carb1ol@yahoo.com Shazia Nadeem

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10 questions
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  • Q1
    A substance that cannot be converted to other simpler substances is called an
    mixture
    all
    elements
    compound
    30s
  • Q2
    A mixture that consists of only one phase is called
    colloid
    suspension
    hetrogeneous
    homogeneous
    30s
  • Q3
    The entire physical world is made up of the mixture of
    compound and elements
    compounds only
    none
    elements only
    30s
  • Q4
    salt in sugar is the example of ----------------------mixture
    homogeneous
    both
    none
    heterogeneous
    30s
  • Q5
    which of the following is a compound?
    O2
    N2
    H2
    HCl
    30s
  • Q6
    The atomic number of hydrogen is 1. so the number of protons in hydrogens are
    2
    2
    3
    1
    30s
  • Q7
    if the atomic number of an element is 11 and mass number is 23 the number of neutrons are....
    14
    11
    12
    13
    30s
  • Q8
    Number of electrons in an elements are 17 and neutrons are 20 then amass number of that element will be
    20
    37
    17
    35
    30s
  • Q9
    No. of Neutron is equal
    mass number -atomic number
    atomic number-mass number
    no. of protons
    no. of electron
    30s
  • Q10
    Atomic number of an atom is 20, then number of neutrons
    20
    21
    18
    can not predict
    30s

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