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RPF Constable (Executive) 2025 · Question 444 of 1580

Which of the following is an example of a heavy metal that the Indian Institute of Science (IISc) researchers aimed to reduce in groundwater with their nanomaterial- based solution in September 2024?

General Science

  1. ACalcium
  2. BChromiumCorrect
  3. CSodium
  4. DPotassium

Answer: B. Chromium

Official answer key verified. Detailed explanation coming soon.

Source: RPF Constable 2025 Question Paper All Shifts English (aglasem compilation of official response sheets, b) · official-answer-key

← Q443View full paper (1580 questions)Q445 →

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