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Oleum is the anhydride of
Option: 1
$\mathrm{H _{2} SO _{4}}$

Option: 2
$\mathrm{H _{2} SO _{3}}$

Option: 3
$\mathrm{H _{2} S _{2} O _{8}}$

Option: 4
None

Answers (1)

best_answer

Disulphuric acid or oleum is the anhydride of Sulphuric acid

$\mathrm{2H_{2}SO_{4}\xrightarrow{-H_{2}O}H_{2}S_{2}O_{7}}$

The structure of Disulphuric acid is given as

Therfore, option(1) is correct

Posted by

manish

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