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Chemistry Test 87
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Chemistry Test 87
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  • Question 1/10
    4 / -1

    What is the shortest wavelength for Paschen series of Li2+ ion :-

    Solutions

     

  • Question 2/10
    4 / -1

    What will be the longest wavelength in Blamer series in hydrogen spectrum ?

    Solutions

     

  • Question 3/10
    4 / -1

     

    If electron falls from n = 3 to n = 2, then emitted energy is :- (for H atom)

  • Question 4/10
    4 / -1

    The de-Broglie wavelength associated with a ball of mass 1 kg having KE 0.5 J is :-

  • Question 5/10
    4 / -1

    Six protons are found in the nucleus of :-

  • Question 6/10
    4 / -1

    What is the energy content per photon (J) for light of frequency 4.2 × 1014 ?

  • Question 7/10
    4 / -1

    The H-spectrum shows

  • Question 8/10
    4 / -1

    In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005%. Certainty with which the position of the electron can be located is (h = 6.6 × 10–34 kg m2s–1, mass of electron, em = 9.1 × 10–31 kg) :-

  • Question 9/10
    4 / -1

    Two electrons present in M shell will not differ in:-

  • Question 10/10
    4 / -1

    Which of the following is not a correct statement regarding the energies of orbitals ?

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