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The p-Block Ele...

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  • Question 1
    1 / -0

    Which of the following chalcogen does not make bonds with germanium?

  • Question 2
    1 / -0

    Which molecule is relatively more stable?

  • Question 3
    1 / -0

    Noble gases have __________ electron affinity.

  • Question 4
    1 / -0

    Which of the following is true regarding derivation of the name of chlorine?

  • Question 5
    1 / -0

    Why does one who drinks alcohol get tempted to drink more alcohol?

  • Question 6
    1 / -0

    Make the correct pairs for the following given X and Y. X contains substance and Y has method of manufacture:


    X
    		Y
    1. Extraction of Sulphur
    		p. Contact process
    2. Production of Nitric acid
    		q. Frasch method
    3. Production of Sulphuric acid
    		r. Haber's process
    4. Production of Ammonia gas
    		s. Ostwald's process

  • Question 7
    1 / -0

    $$N_2(g)+3H_2(g)\overset{773K}{\underset{200-300\ bar}{\longrightarrow}}2NH_3(g)+$$ heat 


    Which of the following works as a catalyst?

  • Question 8
    1 / -0

    When $$262\ g$$ of xenon (atomic mass $$= 131$$) reacted completely with $$152\ g$$ of fluorine (atomic mass $$= 19)$$, a mixture of $$XeF_{2}$$ and $$XeF_{6}$$ was produced. The molar ratio $$XeF_{2} : XeF_{6}$$ is :

  • Question 9
    1 / -0

    The most abundant element in the earths crust by weight is:

  • Question 10
    1 / -0

    The gas produced from thermal decomposition of $$Pb(NO_3)_2$$ is:

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