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In Flame emission photometers, the measurement of _____________ is used for qualitative analysis.

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In Flame emission photometers, the measurement of _____________ is used for qualitative analysis.

(a) Colour

(b) Intensity

(c) Velocity

(d) Frequency

This question was posed to me in final exam.

Question is taken from Flame Emission Photometers topic in chapter Colorimetry and Spectrometry of Analytical Instrumentation

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The correct choice is (a) Colour

Easiest explanation: The colour and the wavelength of the flame are used for qualitative analysis. It is used to determine the element which is present in the sample.

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