Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The key step in the manufacturing of 
by contact process is
A
absorption of 
in 
to give oleum
in to give oleum B
dilution of oleum with water
C
burning of sulphur in air to generate 
D
catalytic oxidation of 
with 
to give 
with to give
Text Solution
Verified by ExpertsThe correct answer is:
D
The catalytic oxidation of 
with 
to give 
. It is used as the key step in the manufacturing of sulphuric acid by contact process.
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