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Structure of At...

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  • Question 2
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    The de – Broglie wavelength associated with ball of mass 200 g and moving at a speed of 5 m hour–1 is of the order of (h = 6·625 x 10–34 Js)

  • Question 3
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  • Question 4
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  • Question 5
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    Among the following series of transition metal ions, the one where all metal ions have same 3d electronic configuration is

  • Question 6
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    For d-electron, the orbital angular momentum is

  • Question 7
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    Time taken for an electron to complete one revolution in the Bohr orbit of hydrogen atom is

  • Question 8
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    The energy of second Bohr orbit of the hydrogen atom is –328 kJ mol–1, hence the energy of fourth Bohr orbit would be

  • Question 9
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    The correct order of number of unpaired electrons in the ions Cu2+, Ni2+, Fe3+ and Cr3+ is

  • Question 10
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    Ground state electronic configuration of nitrogen atom can be represented by

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