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Question 76Asked in RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)

When dilute hydrochloric acid reacts with calcium carbonate, the gas evolved is passed

When dilute hydrochloric acid reacts with calcium carbonate, the gas evolved is passed through limewater. On passing the gas in excess, the milkiness disappears due to the formation of:
  1. ACalcium oxide
  2. BCalcium hydrogen carbonate
  3. CCalcium carbonate
  4. DCalcium hydroxide
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Correct answer: (B) Calcium hydrogen carbonate

From RRB JE CBT-1 PYQ 25 Feb 2026, Shift 3 (4:30 PM)

This is question 76 of RRB JE CBT-1 PYQ 25 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.