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Q.In the Dumas method for the estimation of nitrogen, what is the purpose of the reduced copper gauze placed at the end of the combustion tube?
a
To reduce any nitrogen oxides formed back to free nitrogen gas
b
To absorb carbon dioxide produced during combustion
c
To oxidize the organic compound completely
d
To act as a catalyst for the formation of ammonia
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...