Which one of the followings correctly describe the process occurring at electrodes when molten NaCl is electrolyzed
Correct answer: A. Oxidation at anode, reduction at cathode
- A. Oxidation at anode, reduction at cathode
- B. No reaction at anode, reduction at cathode
- C. Reduction at anode, oxidation at cathode
- D. No reaction at cathode, reduction at anode
Explanation
In the electrolysis of molten NaCl, the correct option states that oxidation occurs at the anode, where chloride ions (Cl-) lose electrons and are converted into chlorine gas (Cl2). Meanwhile, reduction occurs at the cathode, where sodium ions (Na+) gain electrons and are deposited as sodium metal (Na).
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Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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