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Chemistry Test ...

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  • Question 1
    4 / -1

    Which of the following reactions is not a disproportionation reaction?

  • Question 2
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    Which of the following conditions are satisfied when the cell reaction in the electrochemical cell is spontaneous?

  • Question 3
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     Which of the following statements is correct?

  • Question 4
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    The molar conductivity of 0.009 M aqueous solution of a weak acid (HA) is 0.005 S m2 mol-1 and the limiting molar conductivity of HA is 0.05 S m2 mol-1 at 298 K. Assuming activity coefficients to be unity, the acid dissociation constant (Ka) of HA at this temperature is

  • Question 5
    4 / -1

    In the primary batteries,

  • Question 6
    4 / -1

    On taking 60.0 g CH3COOH and 46.0 g CH3CH2OH in a 5 L flask in the presence of H30+ (catalyst), at 298 K 44.0 g of CH3COOC2H5 is formed at equilibrium.

    If amount of CH3COOH is doubled without affecting amount of CH3CH2OH, then CH3COOC2H5 formed is

  • Question 7
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    Which is chlorate (I) ion?

  • Question 8
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    Which of the following is not acid-base conjugate pair?

  • Question 9
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     In a buffer solution containing equal concentration of B– and HB, the Kb for B– is 10–10. The pH of buffer solution is :

  • Question 10
    4 / -1

    What is the observation when the opposing external applied potential to an electrochemical cell is greater than the cell’s potential?

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