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CUET-UG Chemistry Test: Electrochemistry
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CUET-UG Chemistry Test: Electrochemistry
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25 Questions

1. The cell constant of a conductivity cell ______.[NCERT Exemplar]
2. Which cell will measure standard electrode potential of copper electrode?
[NCERT Exemplar]
3. Which of the statement about solutions of electrolytes is not correct?
[NCERT Exemplar]
4. The electrode Pt, Hg(g)/HCl is reversible with respect to:
5. Calculate the EMF of the half-cell given below. PtH2 | HCl at ١-atmosphere pressure and ٠.١ M. Given, E°(OP) = ٢ V.
6. The equilibrium constant for a cell reaction, Cu(g) + ٢Ag+ (aq) - ' Cu2+(aq) + ٢Ag (s) is ١٠ × ٤16. Find E° (cell) for the cell reaction.
7. Which of the following is not a characteristic feature of a salt bridge?
8. What is the observation when the opposing external applied potential to an electrochemical cell is greater than the cell's potential?
9. When no current is drawn through an electrochemical cell, the sum of the electrode potentials of the two electrodes is called cell EMF. True or False?
10. Using the data given below and find out the most stable ion in its reduced form.
11. Using the data given below, find out the strongest reducing agent. [NCERT Exemplar]
12. Which of the following statement is not correct about an inert electrode in a cell?
[NCERT Exemplar]
13. Which of the following statement is correct?
[NCERT Exemplar]
14. Which of the following is correct for spontaneity of a cell?
15. When equilibrium is reached inside the two half-cells of the electrochemical cells, what is the net voltage across the electrodes?
16. What is the correct Nernst equation for M2+(aq) + ٢e+ - ' M(s) at ٤٥°C?
17. Saturated solution of KNO3 is used to make salt bridge because:
18. The standard electrode potentials of four elements A, B, C and D are - ' 3·05, 1·66, - ' 0·40 and 0.80 volts respectively. The highest chemical activity will be shown by:
19. The EMF and the standard EMF of a cell in the following reaction is 5 V and 5.06 V at room temperature, Ni(s) + ٢Ag+ (n) - ' Ni2+(0.02M) + ٢Ag(s). What is the concentration of Ag+ ions?
20. What is the EMF of a galvanic cell if the standard oxidation potential of the oxidation half-reaction is 0.64 volts and the standard reduction potential of the reduction half-reaction is 0.48 volts?
21. The reaction is spontaneous if the cell potential is:
22. Which of the following can be used as fuel in a fuel cell?
23. Conductivity of a solution is directly proportional to:
24. When zinc granule is dipped into copper sulphate solution, copper is precipitated because:
25. The difference between the electrode potentials of two electrodes when no current is drawn through the cell is called ______.[NCERT Exemplar]

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