WBCS.LIVE practice question

CO level in burnt flue gas upto 150 ppm can be monitored by means of

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Non – dispersive IR spectroscopy
  2. UV-Vis spectroscopy
  3. Atomic absorption spectroscopy analysis
  4. Flame photometry

Correct answer and explanation

Correct answer: Non – dispersive IR spectroscopy