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Question 84Asked in RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)

What happens to insoluble impurities during electrolytic refining?

  1. AThey deposit on cathode
  2. BThey dissolve completely
  3. CThey settle as anode mud
  4. DThey evaporate
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Correct answer: (C) They settle as anode mud

From RRB JE CBT-1 PYQ 20 Feb 2026, Shift 3 (4:30 PM)

This is question 84 of RRB JE CBT-1 PYQ 20 Feb 2026, Shift 3 (4:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.