Flame photometer is used in determination of

A. Nitrogen

B. Phosphorus

C. Potassium

D. Boron

Answer: Option C

Solution(By Examveda Team)

A flame Photometer is a device used in inorganic chemical analysis to determine the concentration of certain metal ions like Sodium, Potassium, lithium and calcium.
It works on the principle of a controlled flame test with the intensity of the flame colour quantified by photoelectric circuitry.