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18gm water is added in a 200 gm sample o...

18gm water is added in a 200 gm sample of Oleum labeled as `109%`. The new labelling of the final sample is :

A

`106%`

B

`103%`

C

`100%`

D

`0%`

Text Solution

Verified by Experts

The correct Answer is:
C
Minimum labelling of Oleum `= 100%`
All free `SO_(3)` is exhausted using `18gm` of water and pure `218gm H_(2)SO_(4)` formed.
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