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Chemical Reacti...

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  • Question 1
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    In the equation 2CO + O2 → 2CO2 
    The product is:

  • Question 2
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    The preparation of water from hydrogen and oxygen gas is accompanied by

  • Question 3
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    The black coating on silver is due to

  • Question 4
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    Out of the following reactions, which is an exothermic reaction? I. CH4 + 2O2 → CO2 + 2H2O + 58 kJ II. N2 + O2  + 180.5kJ → 2NO

  • Question 5
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    Which of the following reaction is an example of a displacement reaction involving non-metals?

  • Question 6
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    The reactions in which precipitate is formed are known as

  • Question 7
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    A student uses lime water to test the gas evolved as a result of action of dilute HCl on solid sodium carbonate. The chemical compound present in lime water is

  • Question 8
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    An oxidizing agent is a substance which a. loses oxygen b. gains hydrogen c. gains oxygen

  • Question 9
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    Which of the following metals comes above zinc in reactivity series?

  • Question 10
    1 / -0

    Which metallic spoon can be used to stir lead nitrate solution?

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