2nd PUC Chemistry Series 2

PUC Science 2nd Year Chemistry Series-2 quiz

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Created on By wefru

2nd PUC Chemistry Series 2

TEST YOUR KNOWLEDGE OF SCIENCE

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11. If limiting molar conductivity of Ca2+ and Cl are 119.0 and 76.3 S cm2 mol-1, then the value of limiting molar conductivity of CaCl2 will be

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12. NH4NC>3 is used in salt bridge because

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13. The reaction, 3ClO (aq) → ClO3 (aq) + 2Cl (aq) is an example of

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14. Ni / Ni2+ (1.0 M) // Au3+ (1.0 M) / Au (E° = -0.25 V for Ni2+/Ni; E° = 1.5 V for Au3+/Au) is

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15. The standard emf of a galvanic cell involving cell reaction with n = 2 is formed to be 0.295 V at 25° C. The equilibrium constant of the reaction would be

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16. If E°Fe2+/Fe = -0.441 V and E°Fe2+/Fe2+ = 0.771 V, the standard EMF of the reaction,
Fe + 2Fe3+ → 3Fe2+ will be

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17.  What will be the fraction of molecules having energy equal to or greater than activation energy, Ea?

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18. Which among the following is a false statement?

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19. Which of the following statements about the catalyst is true?
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20. For the reaction N2 + 3H2 → 2NH3 if Δ[NH3]Δt = 2 × 10-4 mol L-1s-1, the value of Δ[H2]/Δt would be

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