MHT CET · Chemistry · Electrochemistry
Which from following is NOT true about electrolysis of molten NaCl ?
- A \(\mathrm{Cl}_2\) gas is liberated at anode.
- B Na is deposited at cathode.
- C The decomposition of NaCl into \(\mathrm{Na}_{(\mathrm{s})}\) and \(\mathrm{Cl}_{2(\mathrm{~g})}\) is spontaneous.
- D Electrical energy is used to carry out the reaction.
Answer & Solution
Correct Answer
(C) The decomposition of NaCl into \(\mathrm{Na}_{(\mathrm{s})}\) and \(\mathrm{Cl}_{2(\mathrm{~g})}\) is spontaneous.
Step-by-step Solution
Detailed explanation
The decomposition of NaCl into \(\mathrm{Na}_{(\mathrm{s})}\) and \(\mathrm{Cl}_{2(\mathrm{~g})}\) is not spontaneous as cell potential for the process is negative.
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