Published by:
CGP EDU Academic Team
Published on: August 14, 2026
of pyrolusite ore was treated with 
of 
oxalic acid and some sulphuric acid. The oxalic acid left undecomposed was raised to 250 
in flask. 
of this solution when titrated with 
required 
of the solution. The percentage of available oxygen is
Text Solution
Verified by ExpertsThe correct answer is:
9
(9) 
of undecomposed oxalic acid required 
solution
Thus, 
of undecomposed oxalic acid required
oxalic acid solution
Oxalic acid used by pyrolusite 
solution
Mass of 
Oxygen given by 
of available oxygen 
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