At which electrode does oxidation occur in a voltaic cell?

a: anode only

b: cathode only

c: either anode or cathode, depending on the metal

! : d

Option (A) is the correct answer.

Explanation:

An electrochemical cell that utilizes chemical reactions in order to produce electrical energy is known as a voltaic cell.

In a voltaic cell, cathode is a positively charged electrodes where gain of electrons take place and hence, reduction occurs.

Whereas anode is a negatively charged electrode where loss of electrons take place and hence, oxidation occurs.

Thus, we can conclude that at anode electrode oxidation occurs in a voltaic cell.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

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