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Some Basic Conc...

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  • Question 1
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  • Question 2
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    The number of oxygen atoms in 4.4 g of CO2 is

  • Question 3
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    The number of gram molecules of oxygen in 6.02 × 1024 CO molecules is

  • Question 4
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    What is the weight of oxygen required for the complete combustion of 2.8 kg of ethylene ?

  • Question 5
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    The normality of 0.3M phosphorous acid is

  • Question 6
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    At S.T.P. the density of CCl4 vapours in g/L will be nearest to :

  • Question 7
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    An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be :

  • Question 8
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    In which of the following pairs percent composition of element is not same ?

  • Question 9
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    What weight of CuO will be required to provide 200Kg copper

  • Question 10
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    Impure sample of ZnS contains 42.34% Zn. What is the percentage of pure ZnS in the sample ?

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