Question

Dumas method is used for estimation of

• A. Nitrogen
• B. Sulphur
• C. Oxygen
• D. Carbon

Hint:

Dumas method is mainly used for nitrogen estimation in organic compounds.

Answer 1

The Correct Option is A

Step 1: Understanding Dumas method.
The Dumas method is an analytical technique used for determining the percentage of nitrogen present in an organic compound.

Step 2: Principle of the method.
In this method, the compound is heated with copper oxide, converting nitrogen into nitrogen gas, which is then measured.

Step 3: Elimination of other options.
Sulphur, oxygen, and carbon are estimated using different analytical methods such as Carius or combustion methods.

Step 4: Conclusion.
Therefore, Dumas method is specifically used for estimation of nitrogen.