Oleum, i.e, H2S2O7 can be prepared by absorption of SO3 in conc. H2SO4 as follows: 3 2 4 2 2 7 Oleum SO H SO H S O -> It’s structure is as follows: Thus, it has no O–O bond and has 2 –OH groups. Thus, option (a) is the correct.
Take chapter-wise tests, track your progress, and master p -Block Elements (group 15-18).
Start Free Practice →