Question

which of the following process is used for the prereparation of sulphuric acid?​

Answer 1

Answer:

the contact process SO2 is oxidized to sulfur trioxide (SO3) at high temperature (about 450°C) in the presence of a vanadium catalyst. SO3 then is dissolved in concentrated sulfuric acid forming fuming sulfuric acid (oleum). This can then be reacted safely with water to produce concentrated sulfuric acid

Answer 2

In the contact process SO2 is oxidized sulpuric trioxide(SO3) at high temperature about(450°C) in the presence of a vanadium catalyst. SO3 then is dissolved in the concentrated sulpuric acid forming fuming sulpuric acid(oleum). This can then be reacted safety with water to produce concentrated sulpuric acid.

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