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1. The unit of specific conductance is

A. S m^-1 B. S mol^-1 C. S m^2 mol^-1 D. S cm^-1

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2. The equivalent weight of H2O2 in acidic medium is

A. M B. M/2 C. M/4 D. 2M

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3. In an electrolytic cell, the cathode is

A. Positive B. Negative C. Neutral D. None of the above

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4. The molar conductivity of a strong electrolyte increases with

A. Increase in concentration B. Increase in temperature C. Increase in pressure D. Decrease in concentration

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5. Which of the following reactions is a redox reaction?

A. HCl + NaOH → NaCl + H2O B. H2 + Cl2 → 2HCl C. AgNO3 + NaCl → AgCl + NaNO3 D. NH3 + HCl → NH4Cl

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6. In a redox reaction, reduction involves

A. Loss of protons B. Gain of protons C. Loss of electrons D. Gain of electrons

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7. The Nernst equation is used to calculate

A. Standard cell potential B. Free energy change C. Rate of a reaction D. Cell potential under non-standard conditions

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8. The emf of a cell is maximum when

A. The cell temperature is minimum B. The cell is at equilibrium C. The cell operates reversibly D. The cell is highly concentrated

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9. The function of a salt bridge in a galvanic cell is to

A. Decrease the emf B. Increase the emf C. Transfer electrons D. Maintain electrical neutrality

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10. Faraday's second law of electrolysis states that

A. Mass deposited ∝ time B. Mass deposited ∝ charge C. Mass deposited is independent of equivalent weight D. Mass deposited ∝ equivalent weight

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11. Which of the following is a strong oxidizing agent?

A. CH4 B. NaCl C. H2O D. KMnO4

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12. The function of a salt bridge is to

A. Transfer electrons B. Increase emf of the cell C. Decrease emf of the cell D. Maintain electrical neutrality

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13. The product obtained at the cathode during the electrolysis of aqueous NaCl is

A. Cl2 B. NaOH C. Na D. H2

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14. Which of the following metals is most reactive in the electrochemical series?

A. Fe B. Cu C. Na D. Zn

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15. In a redox reaction, oxidation involves

A. Gain of electrons B. Loss of electrons C. Loss of protons D. Gain of protons

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16. During the electrolysis of molten NaCl, the product at the anode is

A. Cl2 B. NaOH C. H2 D. Na

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17. Which of the following has the highest standard reduction potential?

A. F2/F- B. I2/I- C. Br2/Br- D. Cl2/Cl-

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18. Which of the following statements is true for a galvanic cell?

A. Electrons flow through the salt bridge B. Electrons flow from cathode to anode C. Electrons flow from anode to cathode D. Cations move from cathode to anode

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19. The number of electrons lost or gained in a redox reaction is called

A. Oxidation number B. Equivalence factor C. Electron count D. Electrochemical number

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20. The Nernst equation is used to calculate

A. Molecular weight B. Rate of reaction C. Electrode potential at standard conditions D. Electrode potential at non-standard conditions