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

Differentiate between the principle of estimation of nitrogen in an organic compound by $(i)$ Dumas method and $(ii)$ Kjeldahl's method.

In the Carius method,$0.099 \, g$ of an organic compound gave $0.287 \, g$ of $AgCl$. The percentage of chlorine in the compound is:

When $1 \ g$ of compound $(X)$ is subjected to Kjeldahl's method for the estimation of nitrogen,$15 \ mL$ of $1 \ M$ $H_2SO_4$ was neutralized by the ammonia evolved. The percentage of nitrogen in compound $(X)$ is:

In Carius method of estimation of halogen,$0.45 \ g$ of an organic compound gave $0.36 \ g$ of $AgBr$. Find out the percentage of bromine in the compound. (Molar masses : $AgBr = 188 \ g \ mol^{-1}$,$Br = 80 \ g \ mol^{-1}$) (in $\%$)

From $0.50 \ g$ of an organic compound,ammonia is evolved and absorbed in $50 \ mL$ of $0.5 \ M \ H_2SO_4$. In the titration of the excess $H_2SO_4$,$60 \ mL$ of $0.5 \ M \ NaOH$ is used. Calculate the percentage of nitrogen in the compound. (in $\%$)