Q. Maximum permissible concentration of copper in drinking water in mg/L is –

  • (A) 0.01
  • (B) 0.05
  • (C) 1.0
  • (D) 2.0
✅ Correct Answer: (D) 2.0

Published by Admin ⭐ 38.23K Points at 23-Jan-2021 08:16 am in Science

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