Which of the following technique/method is not related to instrumental analysis?
Correct answer: D. Gravimetric analysis
- A. Optical method
- B. Colorimetry
- C. Polarography
- D. Gravimetric analysis
Explanation
Gravimetric analysis is a classical or "wet chemical" method that relies on the measurement of mass, typically by weighing a precipitate. Instrumental analysis involves the use of a specialized instrument to measure a physical property like light absorption or electrical potential.
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