JEE Main 2024 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 1 February 2024, Shift 2, Chemistry Q87

Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.

Following Kjeldahl's method, 1g of organic compound released ammonia, that neutralised 10 mL of 2M

\mathrm{H_2SO_4}

. The percentage of nitrogen in the compound is ________%.

Official answer

NTA final key.

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

Same idea in other shifts

Asked 9× in all

1 Feb 2024, Shift 1 · Q71In Kjeldahl's method for estimation of nitrogen, $\mathrm{CuSO_4}$ acts as :EasySingle correct
25 Jul 2022, Shift 1 · Q88While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from $0.25$ g of the compound…EasyNumerical value
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
25 Jul 2021, Shift 2 · Q590.8 g of an organic compound was analysed by Kjeldahl's method for the estimation of nitrogen. If the percentage of nitrogen in the…MediumNumerical value
17 Mar 2021, Shift 2 · Q42Nitrogen can be estimated by Kjeldahl's method for which of the following compound ?MediumDiagram basedHas a figure
8 Jan 2020, Shift 2 · Q40Kjeldahl's method cannot be used to estimate nitrogen for which of the following compounds ?EasySingle correctHas a figure
3 Sep 2020, Shift 1 · Q45The Kjeldahl method of Nitrogen estimation fails for which of the following reaction products ? (a) [figure: a six-membered ring drawn…MediumOtherHas a figure

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 108 of the 174 JEE Main shifts held from 2017 to 2026.