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P - Block Eleme...

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  • Question 1
    4 / -1

    Boron does not form B3+ ions whereas Al forms Al3+ ions. This is because

  • Question 2
    4 / -1

    The compound that is not a Lewis acid is

  • Question 3
    4 / -1

    The hydroxide of which of the following element is amphoteric

  • Question 4
    4 / -1

    If a molecule of MX3 has zero dipole moment, the sigma bonding orbitals used by M (atomic number < 21) are

  • Question 5
    4 / -1

    Which one of the following is a gas ?

  • Question 6
    4 / -1

    Which of the following is not isomorphous with true alum and is called pseudo alum?

  • Question 7
    4 / -1

    In potash alum, potassium and aluminium are present as

  • Question 8
    4 / -1

    Which of the following compounds can make clothes fire proof?

  • Question 9
    4 / -1

    Which of the following statements is incorrect about aluminium ?

  • Question 10
    4 / -1

    The reaction between LiH and AlCl3 gives

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