P-Block Elements Ques 597

Question: Which of the following is the key step in the manufacture of sulphuric acid?

Options:

A) Burning of sulphur or sulphide ores in air to generate $ SO_2 $ .

B) Conversion of $ SO_2 $ to $ SO_3 $ by the reaction with oxygen in presence of catalyst.

C) Absorption of $ SO_3 $ in $ H_2SO_4 $ to give oleum.

D) Both [b] and [c]

Show Answer

Answer:

Correct Answer: B

Solution:

The key step in the manufacture of $ H_2SO_4 $ is catalytic oxidation of $ SO_2 $ with $ O_2 $ to give $ SO_3 $ in presence of $ V_2O_5 $ .



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