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Chemical Reacti...

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  • Question 1
    1 / -0

    H2S burns in air to give

  • Question 2
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    ZnO + C → Zn + CO is an example of

  • Question 3
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    Find the incorrect statement :
    (I) oxygen is highly combustible and hydrogen is supporter of combustion,
    (II) Oxygen and hydrogen both are highly combustible,
    (III) Oxygen and hydrogen both are supporters of combustion,
    (IV) Hydrogen is highly combustible and oxygen is supporter of combustion

  • Question 4
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    Which of the following forms a coloured solution in water ?

  • Question 5
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    Which one of Fe, Al, Cu, Zn is the least reactive metal?

  • Question 6
    1 / -0

    The volume of gas collected in one of the test tubes in electrolysis of water is double than other name the gas

  • Question 7
    1 / -0

    Milk becomes sour if kept for a long time because of

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