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Which of the following is the disadvantage of gas chromatography?

(a) It is not a good method

(b) It cannot be used for qualitative analysis

(c) It cannot be used for the separation of volatile components

(d) It does not provide direct identification

I got this question in an online interview.

My doubt is from Gas Chromatograph- Mass Spectrometer topic in division Mass Spectrometer of Analytical Instrumentation

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Correct choice is (d) It does not provide direct identification

To elaborate: Gas chromatography is a very good method for separation of components of a mixture. It does not provide direct identification.

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