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Which of the following statement is correct in the context of a battery?A. It is an electrochemical cellB. It is used as a source of energyC. The stored energy is released during the redox reactionD. All of these

Answer» Correct Answer - D
We commonly use voltaic cells as convenient, portable source of energy. Any battery (actually it may have one or more than one cell connected in series) or cell that we use as a source of electrical energy is basically a galvanic cell where cell chemical energy of the redox reaction is converted into electrical energy.
However, for a battery to be of practical use it should be reasonably light, compact and its voltage should not very appreciably during its use.
There are mainly two types of batteries.


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