Self Studies

The p-Block Ele...

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  • Question 1
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    Fluorine is highly reactive because:

  • Question 2
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    Assertion (A): Balloons made by nylon films are better for containing helium than the conventional rubber balloons. 
    Reason (R): R.M.S. velocity of helium is very high. So helium atoms can effuse out through rubber balloons.

  • Question 3
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    The atomic number of astatine which belongs to the sixth period is:

  • Question 4
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    What is the atomic number (Z) of the noble gas that reacts with fluorine?

  • Question 5
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    The inert gas which cannot be adsorbed over activated coconut charcoal?

  • Question 6
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    Which of the following exhibits the weakest intermolecular forces?

  • Question 7
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    The correct order of enthalpy of vaporisation of noble gases is :

  • Question 8
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    The atomic weight of noble gases is obtained by using the relationship :

  • Question 9
    1 / -0

    Clathrates are_________

  • Question 10
    1 / -0

    The most abundant element in the earth's crust among the following is_________.

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