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The p-Block Ele...

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  • Question 1
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    Which of the following element does not show inert pair effect?

  • Question 2
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    Silicones have the general formula :

  • Question 3
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    Glass or silica soluble in:

  • Question 4
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     $$CO_2$$ and $$SiO_2$$ is a solid or gas ?

  • Question 5
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    Statement - I: Silicones are very inert polymers.

    Statement - II: Both Si-O and Si-C bond energies are very high.

    Read the above statements and choose the correct option regarding it.

  • Question 6
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    Which variety of glass is used for manufacture of optical glasses ?

  • Question 7
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    Which of the following silk fibre is soft, lustrous and elastic?

  • Question 8
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    Assertion(A): $$Be$$ forms $$[BeF_4]^{2-}$$, but $$Al$$ forms $$[AlF_6]^{3-}$$.

    Reason(R): $$Be$$ does not have d-orbitals in the valence shell but $$Al$$ has.

  • Question 9
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    The decrease in stability of higher oxidation states in p-block with increasing atomic number is due to :

  • Question 10
    1 / -0

    The building units of various crystalline forms of boron are:

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