Q.

Consider the following statements about the application of electro chemical series.I. Comparison of relative oxidising and reducing powers of substances.Il. Prediction of evolution of hydrogen during reaction of a metal with acid.III. Prediction of spontaneity of a redox reaction.IV. Calculation of amount of metal deposited at cathode. The true statement(s) is/are

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a

I and II only

b

I, II and III

c

IV only

d

II, III and IV

answer is B.

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Detailed Solution

Amount of metal deposited can not be obtained with the help of electrochemical series.

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