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Chemistry Test 43
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Chemistry Test 43
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  • Question 1/5
    4 / -1

    The quantum number not obtained from the Schrodinger’s wave equation is -

    Solutions

    Schrodinger's wave equation not related to the direction of e– so fourth quantum no. s not obtained.

  • Question 2/5
    4 / -1

    The set of quantum numbers not applicable for an electron in an atom is -

    Solutions

    Because n ≠ l 
    n = 1, l = 1, m = 1, s = + ½ is not possible

  • Question 3/5
    4 / -1

    NH3 and BF3 combine readily because of the formation of -

    Solutions

    BF3 is electron deficient (6e–) compound so it accept 2e– to attain stable configuration. 
    H3N : → BF3 (co-ordinate bond)

  • Question 4/5
    4 / -1

    The maximum covalency for p-block elements is equal to -

    Solutions

    Maximum covalency = s-&.p electrons in the outermost shell

  • Question 5/5
    4 / -1

    Water and ethanol form non-ideal solution with positive deviation from Raoult's law. This solution will have vapour pressure –

    Solutions

    Due to positive deviation from Raoult's law. So ethanol and water escape easily showing higher vapour pressure than expected value.

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