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Chemistry Test ...

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  • Question 1
    4 / -1

    For the following electrochemical cell reaction at 298 K:

    Zn(s) + Cu²⁺(aq) ⇌ Cu(s) + Zn²⁺(aq),

    Given that the standard cell potential (E° cell) is +1.10 V.

  • Question 2
    4 / -1

    We know that the relationship between Kc and Kp is Kp = Kc (RT)Δn What would be the value of Δn for the reaction NH4Cl (s) ⇔ NH3 (g) + HCl (g)

  • Question 3
    4 / -1

    The pH of a 10−8 molar solution of HCl in water is

  • Question 4
    4 / -1

    Ag2CrO4 and Ag2CO3 are simultaneously dissolved in water. The solubility of Ag2CrO4& Ag2CO3 are 'x′ and 'y′mol/l respectively. If the Ksp of Ag2CrO4 is 'a′ and that of Ag2CO3 is 'b', then which of the following is correct?

  • Question 5
    4 / -1

    The straight chain polymer is formed by:

  • Question 6
    4 / -1

    Calculate the boiling point of a one molar aqueous solution (density = 1.04 gmL−1) of potassium chloride, Kb for water = 0.52 kg mol−1. Atomic mass of K = 39,Cl = 35.5

  • Question 7
    4 / -1

    Ammonia reacts with oxygen giving nitrogen and water. If the rate of formation of N2 is 0.70 mol L−1 s−1, the rate at which O2 is consumed is

  • Question 8
    4 / -1

    The half-life for the thermal decomposition of acetone is 80 s and is independent of initial concentration of acetone. The time required for the reaction to go to 80% decomposition is (Given: log2 = 0.30)

  • Question 9
    4 / -1

    The correct order of acidic strength is

  • Question 10
    4 / -1

    What are X and Y in the following reactions?

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