The Kjeldahl method is used for estimating nitrogen content in organic compounds, especially in compounds like aniline. The method involves the digestion of the sample in concentrated sulfuric acid to convert nitrogen into ammonium sulfate.
Thus, the correct answer is (B).
List I (Molecule) | List II (Number and types of bond/s between two carbon atoms) | ||
A. | ethane | I. | one σ-bond and two π-bonds |
B. | ethene | II. | two π-bonds |
C. | carbon molecule, C2 | III. | one σ-bonds |
D. | ethyne | IV. | one σ-bond and one π-bond |