List of top Chemistry Questions on Nitrogen asked in JEE Main

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 sulfate by heating the organic compound with concentrated H\(_2\)SO\(_4\). In the light of the above statements, choose the correct answer from the options given below:

While estimating the nitrogen present in an organic compound by Kjeldahl’s method, the ammonia evolved from 0.25 g of the compound neutralized 2.5 mL of 2 M H2SO4. The percentage of nitrogen present in organic compound is ________

Nitrogen gas is obtained by thermal decomposition of
0.2 g of an organic compound was subjected to estimation of nitrogen by Duma’s method in which volume of N2 evolved (at STP) was found to be 22.400 mL. The percentage of nitrogen in the compound is _____. [nearest integer] 
(Given : Molar mass of N2 is 28 g mol–1, Molar volume of N2 at STP : 22.4L)
While estimating the nitrogen present in an organic compound by Kjeldahl’s method, the ammonia evolved from 0.25g of the compound neutralized 2.5mL of 2M H2SO4. The percentage of nitrogen present in organic compound is ________
Among the given oxides of nitrogen; N2O, N2O3, N2O4 and N2O5, the number of compound/(s) having N – N bond is:
The reaction of zinc with dilute and concentrated nitric acid, respectively, produces :
Which of the following cation will give green colour in Borax bead test