Sulphur trioxide gas when dissolved in H2SO4 the product obtained as_______?Fill in the blanks.

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H2SO3

H2SO5

H2S2O7

H2S2O8

answer is C.

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Detailed Solution

H2SO4+SO3→H2S2O7Sulfur dioxide when dissolved in sulfuric acid the resultant solution is called fuming sulfuric acid or oleum.

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