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Chemistry Test 147

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Chemistry Test 147
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Weekly Quiz Competition
  • Question 1
    4 / -1

    Which of the following is a non reducing sugar?

  • Question 2
    4 / -1

    Select correct statement :

  • Question 3
    4 / -1

    Which of the following is example of addition polymer -   

    (P) Polyisoprene    (Q) Orlon    (R) Decron    (S) Buna-N

  • Question 4
    4 / -1

    Which one of the following is a synthetic linear addition homopolymer -

  • Question 5
    4 / -1

    The example of globular protein is

  • Question 6
    4 / -1

    2 mole of ideal monoatomic gas is expanded from initial pressure of 5 atm and initial temperature of 300 K to final pressure of 4 atm against constant external pressure of 2 atm adiabatically. What is the ΔH of the process.

    Solution

    Let Tf be final temperature 

    W = ΔE

    ⇒ – Pext(vf – vi)= nCv(Tf – Ti)

    ⇒ Tf = 285 K

     

  • Question 7
    4 / -1

    Consider a ideal gas reaction 

    A(g) → B(g) ; ΔG = 76.5 joule

    ΔH = 276.5 joules at 300K, then equilibrium temperature of reaction will be :

    Solution

    ΔG = ΔH –TΔS

    76.5 = 276.5 – (300) ΔS

    300ΔS = 200

    ΔS = 2/3

    Tequilibrium = ΔH/ΔS 

     

  • Question 8
    4 / -1

    FeCr2O4 (chromite) is  converted to K2Cr2O7 by  following steps :

  • Question 9
    4 / -1

    Which of the following causes laxative effect when present above  500 ppm in water :

  • Question 10
    4 / -1

    Which of the following is the correct order of the boiling points of hydrides of group-16 ?

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