JEE-MAIN SERIES Chemistry
Nitrogen
7 previous year questions.
Volume: 7 Ques
Yield: Medium
High-Yield Trend
1
2025 5
2022 1
2016 Chapter Questions 7 MCQs
01
PYQ 2016
medium
chemistry ID: jee-main
The reaction of zinc with dilute and concentrated nitric acid, respectively, produces :
1
and
2
and NO
3
NO and
4
and
02
PYQ 2022
easy
chemistry ID: jee-main
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 ________
03
PYQ 2022
medium
chemistry ID: jee-main
Nitrogen gas is obtained by thermal decomposition of
1
Ba(NO3)2
2
Ba(N3)2
3
NaNO2
4
NaNO3
04
PYQ 2022
medium
chemistry ID: jee-main
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)
(Given : Molar mass of N2 is 28 g mol–1, Molar volume of N2 at STP : 22.4L)
05
PYQ 2022
medium
chemistry ID: jee-main
Among the given oxides of nitrogen; N2O, N2O3, N2O4 and N2O5, the number of compound/(s) having N – N bond is:
1
1
2
2
3
3
4
4
06
PYQ 2022
medium
chemistry ID: jee-main
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 ________
07
PYQ 2025
easy
chemistry ID: 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 SO . In the light of the above statements, choose the correct answer from the options given below:
1
Both Statement I and Statement II are true
2
Statement I is false but Statement II is true
3
Both Statement I and Statement II are false
4
Statement I is true but Statement II is false