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Question
Chemistry
Oleum is
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Q. Oleum is
AIPMT
AIPMT 1991
The p-Block Elements - Part2
A
castor oil
9%
B
oil of vitriol
11%
C
f
u
m
i
n
g
H
2
S
O
4
67%
D
None of these
13%
Solution:
Disulphuric acid
(
H
2
S
2
O
7
)
is called oleum or fuming sulphuric acid. It is strongest oxidising agent and more powerful dehydrating agent.