Chemistry · Electrolytic and metallic conduction, conductance in electrolytic solutions, molar conductivities and their variation with concentration, Kohlrausch's law and its applications
Assertion A small amount of acid or alkali is added before electrolysis of water
Assertion A small amount of acid or alkali is added before electrolysis of water. Reason Pure water is weak electrolyte.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Assertion is incorrect but Reason is correct.
Step-by-step solution
Pure water is a weak electrolyte due to its low self-ionization, resulting in very few ions and low electrical conductivity. To facilitate electrolysis, a small amount of acid or alkali is added to increase the ion concentration, thereby enhancing conductivity. Thus, the reason correctly explains the assertion.
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