1298Every Day ScienceMedium
A ‘breath test’ used by traffic police to check drunken driving uses ____?
ASilica gel coated with silver nitrate
Bpotassium permanganate-sulphuric acid
CTurmeric on filter paper
DPotassium dichromatic-sulphuric acid
Correct answer
D. Potassium dichromatic-sulphuric acid
Explanation
Potassium dichromatic-sulphuric acid is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.