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  9. Q12

BPSC (Bihar PCS) 2020 · Question 12 of 150

The breath test conducted by police to check drunken driver has which one of the following on the filter paper?

Geography

  1. APotassium dichromate-sulfuric acidCorrect
  2. BPotassium permanganate-sulfuric acid
  3. CSilica gel coated with silver nitrate
  4. DTurmeric
  5. ENone of the above / More than one of the above

Answer: A. Potassium dichromate-sulfuric acid

Explanation

Understanding the Police Breath Test The breath test is a common method used by law enforcement to determine if a driver is operating a vehicle while under the influence of alcohol. This test analyzes the alcohol content in a driver's exhaled breath. The device used typically contains a component, o

Source: prepp.in

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