SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) General Science Chemistry Chemistry in Everyday Life
The breath test conducted by police to check drunken driver has which one of the following on the filter paper?
1
Potassium dichromate-sulfuric acid
2
Potassium permanganate-sulfuric acid
3
Silica gel coated with silver nitrate
4
Turmeric