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S and P Block Elements Test - 5

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S and P Block Elements Test - 5
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Consider following statements: 
    I: In diamond, each carbon atom is linked tetrahedrally to four other carbon atoms by sp3 bonds. 
    II: Graphite has planar hexagonal layers of carbon atoms held together by weak Vander Waals forces. 
    III: Silicon exists only in diamond structure due to its tendency to form pπ – pπ bonds to itself. In this -

    Solution

    Only 1 and 2 are correct, as silicon also exists in other forms.

  • Question 2
    1 / -0

    Graphite conducts electricity because of the -

    Solution

    In graphite there is sp2 hybrized carbon. thus due to Highly delocalized π electrons it possess electrical conductivity

  • Question 3
    1 / -0

    Producer gas is a mixture of -

    Solution

    Produces gas is mixture of (CO + N2)

  • Question 4
    1 / -0

    Which one of the following reactions of Xenon compounds is not feasible?

    Solution

    XeF2, XeF4 and XeF6 are powerful fluorinating reagents and thus readily hydrolysed by water.

    Xenon trioxide, however, is a powerful oxidising agent which is soluble only in water and alkali fluorides. Hence, the reaction of XeO3 and HF is not possible.

    XeO3 + 6HF → No reaction 
    Hence, option A is correct.

  • Question 5
    1 / -0

    Which of the following is not the application of sulphur–

    Solution

    Sulphur doesn’t participate in alloy formation.

  • Question 6
    1 / -0

    H2SO4 has very high corrosive action on skin because–

    Solution

    It acts as dehydrating agent and absorption of water is highly exothermic.

  • Question 7
    1 / -0

    In sulphate ion the oxidation state of sulphur is + 6 and hybridization state of sulphur is–

    Solution

    SO42– 
    x + (–8) = – 2 
    x = + 6 
    SO42– = sp3

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