In the quantitative estimation of sulfur in an organic compound,the amount of sulfur is determined in the form of which substance?

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 $H_2SO_4$. In the light of the above statements,choose the correct answer from the options given below.

In Duma's method of estimation of nitrogen,$0.1840 \, g$ of an organic compound gave $30 \, mL$ of nitrogen collected at $287 \, K$ and $758 \, mm$ of $Hg$ pressure. The percentage composition of nitrogen in the compound is $......$ . (Round off to the Nearest Integer). [Given : Aqueous tension at $287 \, K = 14 \, mm$ of $Hg$ ]

Following Kjeldahl's method,$1 \ g$ of organic compound released ammonia,which neutralized $10 \ mL$ of $2 \ M \ H_2SO_4$. The percentage of nitrogen in the compound is . . . . . . $\%$.

Which element is estimated by the Carius method?

Dumas method involves the determination of nitrogen content in the organic compound in the form of