JEE Main 2022 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 25 July 2022, Shift 1, Chemistry Q88

Question 88 of 90 in this shift, Chemistry question 28 of 30, Section B.

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

\mathrm{H_2SO_4}

. The percentage of nitrogen present in organic compound is ______.

Official answer

NTA final key (2022 Session 2).

Chapter: Organic Chemistry: Some Basic Principles and Techniques
Topic: Stoichiometry
Idea tested: Stoichiometry of Kjeldahl Method

Same idea in other shifts

Asked 3× in all

24 Jun 2022, Shift 1 · Q88A 0.166 g sample of an organic compound was digested with conc. $\mathrm{H_2SO_4}$ and then distilled with NaOH. The ammonia gas evolved…MediumNumerical value
29 Jun 2022, Shift 1 · Q88Kjeldahl's method was used for the estimation of nitrogen in an organic compound. The ammonia evolved from 0.55 g of the compound…EasyNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.