Which one of the following serve as aquatic solar fuel cell:

Related Mcqs:

1. How much solar flux absorb by earth’s  surface is used to drive hydrologic cycle: 

   A. 1/2sec
   B. 1/3rd
   C. 1/4th
   D. 1/5th

   Submitted by: Said wali shah

2. Which of the following cell is not rechargeable ?

   A. Lead storage battery
   B. Silver oxide cell
   C. Fuel cell
   D. Ni-Cd cell

3. Which of the following is true in the case of Zn-Cu cell ?

   A. The flow of electrons takes place from copper to zinc
   B. E0red of copper electrode is less than that of zinc electrode
   C. Zinc acts as an anode and copper as cathode
   D. All are correct

4. Which of the following is non spontaneous cell?

   A. Electrolytic cell
   B. Galvanic cell
   C. Daniel cell
   D. Not

   Submitted by: Aamir khan Hullio

5. Which is true about Zn-Cu galvanic cell ?

   A. Reduction occurs at anode
   B. K+ ion transfer from salt bridge to left beaker of ZnSO4
   C. Oxidation occurs at cathode
   D. Anode is negatively charged

6. In an electrolytic cell current flows ?

   A. From cathode to anode in outer circuit
   B. From anode to cathode outside the cell
   C. From cathode to anode inside the cell
   D. both B & C

7. In galvanic cell Zn acts as an anode so its value of standard reduction potential in comparison to coupled electrode would be________________?

   A. greater
   B. lesser
   C. sum of reduction and oxidation potentials
   D. none

8. The element that act as anode always have ______________ position in electrochemical cell?

   A. higher
   B. lower
   C. in middle
   D. no effect of position

9. Downs cell is used to prepare_________________?

   A. Sodium carbonate
   B. Sodium bicarbonate
   C. Sodium metal
   D. Sodium hydroxide

10. In Dry cell, cathode is made up of_______?

    A. Zinc
    B. Carbon (Graphite)
    C. ZnCl²
    D. MnO²(Pyrolusite)

    Submitted by: Aamir khan Hullio