Oleum or fuming H_2SO_4 is: – InterviewSolution

1.	Oleum or fuming H_2SO_4 is:
Answer» A MIXTURE of CONC.`H_2SO_4` and oil Sulphuric acid which gives fumes of SULPHUR dioxide Sulphuric acid saturated with Sulphur TRIOXIDE, i.e., `H_2S_2O_7` A mixture of sulphuric acid and nitric acid Answer :C

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