u>Solution :-

Yes, in the ions seperation experiment, we use anode and cathode to seperate ions in the solution. The reason is because for the conduction of electricity in the solution, there should be MOVEMENT of electrons. When energy is passed, certain reactions take place at anode and cathode which makes ions dissociate and associate causing conduction of electricity. If ions won't dissociate at one terminal and then associate at another, then there will be no transfer of electrons causing no ION seperation.

• Normal Molecule : Normal Molecule the molecule of an element WITHOUT any charge over it.

• Required Answer ::

No, we can't seperate ions without changing them to normal molecules. Actually when we use a Daniell Cell / Voltaic Cell / Galvanic Cell we take a molecule with a charge over it at both anode and cathode differently. One dissociates to give ions and another associates to take ions. Here ions refer to electron.

Here it has been asked that if they will behave as a normal molecule or not. Try recalling the concept of electricity. For the conduction of electricity in a ELECTROLYTIC solution, electrons move from one terminal to another. In this TYPE of cell, anode is negative terminal and cathode is positive terminal. At cathode, reduction takes place making the molecule dissociate electrons and seperate ions becoming a normal molecule. At anoode, oxidation takes place making the molecule gain the lost electron and thus becoming ion and eventually a normal molecule. This means that for ion seperation, changing of molecules to normal molecules is necessary.

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★ More to know :-

• Voltaic Cell :: A cell which converts chemical energy to electrical energy.

• Reduction : A process to loose electron .

• Oxidation : To gain electron.