Given below are two statements I and II.

Statement I: Dumas method is used for estimation of "Nitrogen" in an organic compound.

Statement II: Dumas method involves the formation of ammonium sulphate

Question

Given below are two statements I and II.

Statement I: Dumas method is used for estimation of "Nitrogen" in an organic compound.

Statement II: Dumas method involves the formation of ammonium sulphate by heating the organic compound with conc .

In the light of the above statements, choose the correct answer:

(a) Both Statement I and Statement II are true
(b) Statement I is false but Statement II is true
(c) Both Statement I and Statement II are false
(d) Statement I is true but Statement II is false

Canvas Classes · Accepted Answer

Statement I — Dumas method for nitrogen estimation:

Dumas method IS used for the estimation of nitrogen in organic compounds.

→ Statement I is TRUE ✓

Statement II — Mechanism of Dumas method:

In Dumas method, the organic compound is heated with CuO (copper oxide) in a stream of CO₂. Nitrogen in the compound is converted to N₂ gas, which is collected over KOH solution.

The formation of ammonium sulphate by heating with conc H₂SO₄ is the Kjeldahl method, NOT Dumas method.

→ Statement II is

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