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P - Block Eleme...

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  • Question 1
    4 / -1

    Which of the following is not correct in case of boron nitride, BN

  • Question 2
    4 / -1

    Borax on heating strongly above its melting point melts to a liquid which then solidifies to a transparent mass commonly known as borax bead. The transparent glassy mass consists of

  • Question 3
    4 / -1

    Among the following compounds of boron, the species which also forms π-bond in addition to σ-bonds is

  • Question 4
    4 / -1

    Which of the following statements is not true for carbon ?

  • Question 5
    4 / -1

    The nature of chemical bonding in graphite is

  • Question 6
    4 / -1

    Which of the following gases is needed by plants for their growth

  • Question 7
    4 / -1

    Antidote for CO poisoning is

  • Question 8
    4 / -1

    Carbon monoxide is absorbed by

  • Question 9
    4 / -1

    Thermodynamically, the most stable allotrope of C is

  • Question 10
    4 / -1

    The gas which burns with a blue flame is

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