A 'breath test' used by traffic police to check drunken driving uses?
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Correct Answer: Option D
Explanation:
The earliest developed breathalyzer was based on the reaction of alcohol is present in the exhaled air with a cocktail of chemicals containing sulfuric acid, potassium dichromate, silver nitrate, and water. Silver nitrate catalyzes the reaction between alcohol and potassium dichromate in an acidic medium.
The earliest developed breathalyzer was based on the reaction of alcohol is present in the exhaled air with a cocktail of chemicals containing sulfuric acid, potassium dichromate, silver nitrate, and water. Silver nitrate catalyzes the reaction between alcohol and potassium dichromate in an acidic medium.