In Galvanic cell electrons flow from anode to cathode through__________________?

Related Mcqs:

1. 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

2. 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

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

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

4. In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?

   A. Hydroxide ions to reach anode
   B. Chlorine gas to mix
   C. Cathode to decay
   D. All of the above

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

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

   Submitted by: Aamir khan Hullio

6. In a galvanic cell________________?

   A. Chemical energy is converted into electricity
   B. Chemical energy is converted into heat
   C. Electrical energy is converted into chemical energy
   D. Electrical energy is converted into heat

7. Reaction at anode is called________________?

   A. oxidation
   B. reduction
   C. redox
   D. decomposition

8. In alkaline battery the anode is made up of______________________?

   A. MnO2
   B. Zn
   C. AgO2
   D. cadmium

9. In an electrolysis of aqueous Sodium Flouride, the species that moves towards Anode is _________?

   A. Flouride
   B. Sodium
   C. H²O
   D. None of them

   Submitted by: Aamir khan Hullio

10. Which one is not true about cathode rays ?

    A. 9.11×10-31 Kg
    B. Cast shadow
    C. Heat up the platinum foil
    D. Cannot ionize