Tumeric on filter paper
Silica gel coated with saliva nitrate
Potassium permanganate-sulphuric acid
Potassium dichromatic-sulphuric acid
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The correct answer is Potassium dichromate-sulfuric acid. It a test to check the presence of alcohol in a person's blood & carried out on samples of breath provided by the person. It is done with the help of filter paper made of Potassium dichromate-sulfuric acid.
Potassium dichromate is a crystalline ionic solid with a very bright, red-orange colour.
If you're speeding, in an accident, or weaving on the road, local police may suspect you of driving under the influence, or DUI. They can use a device known as a Breathalyzer to test your BAC right at the scene of an accident or on the side of the road if they pull you over.
