161.Write the anode reaction, the cathode reaction and the net cell reaction for the following cells. Which electrode will be the positive terminal in each cell?
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162.Split the following redox reactions in oxidation and reduction half reactions:
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163.
What is electrode potential? Name the factors on which it depends.
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164.What do you know about the standard hydrogen electrode? What is its significance ?
Can we measure the absolute value fo single electrode potential? Explain.
It is not possible to measure the absolute value of single electrode potential because neither oxidation nor reduction takes place independently. We can measure electrode potential with reference to a reference electrode. For this purpose, standard hydrogen electrode has been selected as the reference and is assigned an arbitrary value of zero volts in the standard state.
The potential difference as measured between any electrode and the standard reference electrode is taken as the reduction potential of the electrode.
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166.
Define standard electrode potential of an electrode.
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Long Answer Type
167.How will you determine the standard reduction potential (E°) of an electrode experimentally?
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168.What is electrochemical series? What are its important applications?
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Short Answer Type
169.
Given the standard electrode potentials,
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170.
Arrange the following metals in order in which they displace each other: Al, Cu, Fe, Mg, Zn.
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