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Chemistry Test 91
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Chemistry Test 91
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  • Question 1/10
    4 / -1

    PA and PB are the vapour pressure of pure liquid components, A and B, respectively of an ideal binary solution. If XA  represents the mole fraction of component A, the total pressure of the solution will be.

    Solutions

    PT    = PAXA + PBXB
            = PAXA + PB(1 – XA)
            = PAXA + PB – PBXA
    PT    = PB + XA (PA – PB)

     

  • Question 2/10
    4 / -1

    Water should boil at 90°C at pressure :-

  • Question 3/10
    4 / -1

    Which is most soluble gas in liquid?

  • Question 4/10
    4 / -1

    Which is not anomalous pair of element in the Mendeleev's periodic table ?

  • Question 5/10
    4 / -1

    Which electronic configuration belong to p-block :-

  • Question 6/10
    4 / -1

    The correct option regarding the following electronic configuration : –

    Solutions

    [Rn] 7s2 6d2 – f-block
    [Xe] 6s2 4f14 5d1 – f-block
    [Xe] 6s2 4f14 5d10 6p1 – p-block
    [Xe] 6s2 4f1 5d1 – f block

     

  • Question 7/10
    4 / -1

    Which of the following radius order is not present due to lanthanoid contraction?

    Solutions

     Transitional contraction.

     

  • Question 8/10
    4 / -1

    Which of the following species are isoelectronic but the first one is large in size :-

    Solutions

     

  • Question 9/10
    4 / -1

    Correct order of atomic radius on given species if :-

    Solutions

     

  • Question 10/10
    4 / -1

    If the Zeff of Na is x then Ca will be :-

    Solutions

    Zeff of Na = x

     

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