Four rubber tubes are respectively filled with H_2, O_2, N_2 and he. T – InterviewSolution

1.	Four rubber tubes are respectively filled with H_2, O_2, N_2 and he. The tube which will be reinflated forst is :
Answer» `H_2` FILLED TUBE `O_2` filled tube `N_2` filled tube He filled tube Answer :A

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