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Chemistry Test ...

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  • Question 1
    4 / -1

    If helium and methane are allowed to diffuse out of the container under the similar conditions of temperature and pressure, then the ratio of rate of diffusion of helium to methane is .

  • Question 2
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    For a monatomic gas kinetic energy = E, the relation with rms velocity is

  • Question 3
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    In this balanced equartion x, y, z are

  • Question 4
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    Propyne and propene can be distinguished by

  • Question 5
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    A piston is cleverly designed so that it extracts the maximum amount of work out of a chemical reaction, by matching Pexternal to the Pinternal at all times. This 8cm diameter piston initially holds back 1 mol of gas occupying 1 L, and comes to rest after being pushed out a further 2 L at 25oC .After exactly half of the work has been done, the piston has travelled out a total of

  • Question 6
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    A monatomic ideal gas undergoes a process in which the ratio of P to V at any instant is constant and equal to 1. What is the molar heat capacity of the gas?

  • Question 7
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    Which of the following carboxylic acids undergoes decarboxylation easily ?

  • Question 8
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    The most stable resonating structure of following compound is

  • Question 9
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    Heating mixture of Cu2O and Cu2S will give

  • Question 10
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    A solution which is 10–3 M each in Mn2 +, Fe2 +, Zn2 + and Hg2 + is treated with 10-16 M sulphide ion. If Ksp of MnS, FeS, ZnS and HgS are 10-13, 10–18, 10–24 and 10–53 respectively, which one will precipitate first ?

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