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Chemistry Test ...

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  • Question 1
    4 / -1

    If the nitrogen atom had electronic configuration 1s7, it would have energy lower than that of the normal ground state configuration 1s2 2s2 2p3, because the electrons would be closer to the nucleus, yet 1s7 is not observed because it violates

  • Question 2
    4 / -1

    Amongst the following, the most basic compound is

  • Question 3
    4 / -1

    How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral complex with a Ca2+

  • Question 4
    4 / -1

    The first orbital of H is represented by 

     

    where a0 is Bohr's radius The probability of finding the electron at a distance r, from the nucleus in the region dV is

  • Question 5
    4 / -1

    20% of N2O4 molecules are dissociated in a sample of gas at 27∘C and 760 torr. Mixture has the density at equilibrium equal to:

  • Question 6
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    Which of the following compounds display geometrical isomerism?

  • Question 7
    4 / -1

    Nickel (Z = 28) combines with a uninegative mono dentate ligand X- to form a paramagnetic complex [NiX4]2-.The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively

  • Question 8
    4 / -1

    The correct stability order of the following resonance structures is?

  • Question 9
    4 / -1

    Identify Z in the sequence,

  • Question 10
    4 / -1

    The shape of XeF4 is :

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