Q. A ‘breath test’ used by traffic police to check drunken driving uses ____?

  • (A) Turmeric on filter paper
  • (B) Silica gel coated with silver nitrate
  • (C) potassium permanganate-sulphuric acid
  • (D) Potassium dichromatic-sulphuric acid
✅ Correct Answer: (D) Potassium dichromatic-sulphuric acid

Published by Kartik Sharma ⭐ 8.52K Points at 22-Mar-2022 03:16 pm in Chemistry

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