The use of pyrogallol in Ramsay - Rayleigh second method is – InterviewSolution

1.	The use of pyrogallol in Ramsay - Rayleigh second method is
Answer» to ABSORB `O_2` to absorb NOBLE gas mixture to absorb `CO_2` to absorb `O_2, CO_2 & N_2` ANSWER :A

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