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Chemistry
Identify the correct formula of oleum from the following
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Q. Identify the correct formula of oleum from the following
NEET
NEET 2019
A
H
2
S
2
O
7
84%
B
H
2
SO
3
6%
C
H
2
SO
4
5%
D
H
2
S
2
O
8
4%
Solution:
Oleum $\to$ pyrosulphuric acid $(H_2S_2O_7)$