Q.

Consider the following relations for emf of a electrochemical cell: 

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a

emf of cell = (Oxidation potential of anode) + (Reduction potential of cathode) 

b

emf ofcell = (Oxidation potential of anode) — (Reduction potential of cathode) 

c

emf of cell = (Reduction potential of anode) + (Reduction potential of cathode) 

d

emf of cell = (Oxidation potential of anode) — (Oxidation potential of cathode) 

answer is B, D.

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Detailed Solution

EMF of a cell = Reduction potential of cathode - Reduction potential of anode

                     = Reduction potential of cathode + Oxidation potential of anode

                    = Oxidation potential of anode - Oxidation potential of cathode
 

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Consider the following relations for emf of a electrochemical cell: