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The p-Block Ele...

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  • Question 1
    1 / -0

    Which element is more likely to exist in many different forms?

  • Question 2
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    Find the gases which is the densest at standard temperature and pressure.

  • Question 3
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     In commercial industry, ammonia is prepared by :

  • Question 4
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    What are the missing products of the following reaction? $$\displaystyle { NH }_{ 4 }Cl+{ Ca\left( OH \right)  }_{ 2 }\rightarrow \_ \_ \_ +Ca{ Cl }_{ 2 }$$

  • Question 5
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    Read the two statements given below and answer whether they are true or false.

    Statement I: $${He}_{2}$$ is not a commonly known form.

    Statement II: $$He$$ is lighter than air.

  • Question 6
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    The number of valence electrons present in noble gases is:

  • Question 7
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    Identify the true statement regarding nitrates of all metals.

  • Question 8
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    Formation of $${O}^{-}$$ is ________, whereas formation of $${O}^{-2}$$ is __________.

  • Question 9
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    Nitrogen reacts with a metal $$M$$ to produce a compound $$X$$. This compound $$X$$ when dissolved in water forms pungent gas $$Y$$ which can be identified easily by the formation of white fumes in the presence of $$HCl$$.

    Identify Y:

  • Question 10
    1 / -0

    In crystalline form sulphur existing in $${ S }_{ 8 }$$ molecule has:

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