Zeisel method is used to estimate

In the estimation of phosphorus in an organic compound,phosphorus is $NOT$ weighed in the form of which of the following substances?

$29.5 \ mg$ of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absorbed in $20 \ mL$ of $0.1 \ M \ HCl$ solution. The excess of the acid required $15 \ mL$ of $0.1 \ M \ NaOH$ solution for complete neutralization. The percentage of nitrogen in the compound is $..... \%$.

In Kjeldahl’s method,the nitrogen present in the organic compound is quantitatively converted into

Which one of the following methods can be used to find out the percentage composition of halogen present in an organic compound?

In the estimation of $C$ and $H$ by Liebig's method,is $H_2O$ absorbed before $CO_2$? Why?