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Question 61Asked in RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)

A student adds lead (II) nitrate (Pb(NO3)2) to an unknown solution. A yellow precipitate

A student adds lead (II) nitrate (Pb(NO3)2) to an unknown solution. A yellow precipitate forms. What could the unknown solution be?
  1. APotassium iodide (KI)
  2. BCopper sulphate (CuSO4)
  3. CSodium chloride (NaCl)
  4. DBarium sulphate (BaSO4)
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Correct answer: (A) Potassium iodide (KI)

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

This is question 61 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.