Which of the following is not a composition measuring instrument ?
Correct answer: B. Hot wire anemometer
- A. Thermal conductivity cell
- B. Hot wire anemometer
- C. Polarograph
- D. Mass spectrometer
Explanation
A hot-wire anemometer measures fluid velocity or flow, not composition. Thermal-conductivity cells, mass spectrometers, and polarographs can all provide information related to composition.
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