What information is conveyed by the cell rotation given below?Cu(

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 Multiple Choice QuestionsShort Answer Type

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235. Give an example of fuel cell.
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236. Write the symbolic notation for standard hydrogen electrode and its potential.
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237. What is a galvanic cell? What type of reactions give rise to electric current in a galvanic cell and how?
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238. What information is conveyed by the cell rotation given below?
Cu(s) | Cu2+ (aq) (0.1 M) || Ag+ (aq) (0.2 M) | Ag(s)


In cell reaction :

Cu(s) +2Ag+(aq) ---->Cu2+(aq) +2Ag(s)

Half cell reaction
Cathode (reduction ):
2Ag+(aq) +2e- -----> 2Ag(s)

Anode (oxidation)
Cu(s) -----> Cu2+(aq) +2e-

 In overall reaction of the cell, silver electrode act as cathode and copper electrode act as anode.

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239. What is a salt bridge and what function does it save in a galvanic cell?
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240. What is meant by ‘standard electrode potential’ on the hydrogen scale?
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