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Question
Sulphur trioxide can be obtained by which of the following:
Options
\[\ce{CaSO4 + C ->[\Delta]}\]
\[\ce{Fe2(SO4)3 ->[\Delta]}\]
\[\ce{S + H2SO4 ->}\]
\[\ce{H2SO4 + PCl5 ->[\Delta]}\]
MCQ
Solution
\[\ce{Fe2(SO4)3 ->[\Delta]}\]
Explanation:
\[\ce{Fe2(SO4)3 ->[\Delta] Fe2O3 + 3SO3}\]
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