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Chemistry Test ...

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  • Question 1
    4 / -1

    Which statement is incorrect about X ?

  • Question 2
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  • Question 3
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  • Question 4
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    Which of the following alkyl bromides undergo fastest SN1 reaction in water ?

  • Question 5
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    Directions For Questions

    NH3(g) is sealed in a U-tube manometer of uniform area of cross-section at 80 cm of Hg, as shown

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    After sometime, due to the dissociation of NH3, it was observed that the air column has shrunk by 5cm. Assuming that temperature remains constant, what is the degree of dissociation of NH3 ?

  • Question 6
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    To the dissociation reaction was added, maintaining its partial pressure constant.

  • Question 7
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    1 mole of an ideal monoatomic gas occupying a volume of 20L at 1 atm undergoes single step adiabatic compression against a constant external pressure of 10 atm. The final volume of gas is - 

  • Question 8
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    What is the solubility of CaCO3 in 0.4M H2CO3 solution ? Assume H2CO3 to be stable in aqueous solution for the duration of the reaction and Ca(HCO3)2 to be completely soluble. Ksp of CaCO3 = 10–9M K1, K2 of H2CO3 = 10–7 and 10–11 respectively

  • Question 9
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    (i) Reaction is a zero order reaction

    (ii) Rate constant for the reaction is 0.02 s–1

    (iii) If concentration of A is changed, then rate constant changes, but rate of reaction remains constant.

    (iv) The reaction is a complex reaction

  • Question 10
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    Electrons in H atom get excited from the ground state to an orbit in which the wavelength of the electron is 10 times the wavelength of an electron in the ground state of He+. How many spectral lines are observed in the visible range when these electrons are de-excited to the ground state ?

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