Question

Fill in the blank
------------ used used to prepare sulphuric acid

Answer 1

Answer:

sulphuric acid is prepared industrially by the reaction of water with Sulphur trioxide

Explanation:

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Answer 2

Answer:

Sulfuric acid is prepared industrially by the reaction of water with sulfur trioxide (see sulfur oxide), which in turn is made by chemical combination of sulfur dioxide and oxygen either by the contact process or the chamber process.