

MCQOPTIONS
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1. |
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 |
Answer» E. | |