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A ‘breath test’ used by traffic police to check drunken driving uses
  • a)
    potassium dichromate-sulphuric acid
  • b)
    potassium permanganate-sulphuric acid
  • c)
    turmeric on filter paper 
  • d)
    silica gel coated with silver nitrate 
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A breath test used by traffic police to check drunken driving usesa)po...
The silver nitrate acts as a catalyst, allowing the alcohol to be oxidized at an appreciable rate. The requisite acidic condition needed for the reaction might also be provided by the sulfuric acid. In solution, ethanol reacts with the potassium dichromate, reducing the dichromate ion to the chromium (III) ion
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A breath test used by traffic police to check drunken driving usesa)po...
A is the first letter of the English alphabet. It is a vowel and is pronounced as "ay." It is also used as a symbol for various concepts in mathematics and science, such as acceleration, area, and amplitude. In music, A is one of the notes in the musical scale. It is also commonly used as a symbol or logo for companies and organizations.
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A breath test used by traffic police to check drunken driving usesa)potassium dichromate-sulphuric acidb)potassium permanganate-sulphuric acidc)turmeric on filter paperd)silica gel coated with silver nitrateCorrect answer is option 'D'. Can you explain this answer?
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