JEE Main 2020 · ChemistryMultiple choiceSingle correctMediumApplication

JEE Main 4 September 2020, Shift 1, Chemistry Q45

Question 45 of 75 in this shift, Chemistry question 20 of 25.

Which of the following will react with

\mathrm{CHCl_3}

+ alc. KOH ?

(1)Adenine and proline
(2)Adenine and thymine
(3)Adenine and lysineOfficial answer
(4)Thymine and proline

Official answer

Option 3

NTA final key (Sep 2020).

Chapter: Amines
Topic: Amines
Idea tested: Carbylamine Reaction

Same idea in other shifts

Asked 7× in all

2 Apr 2026, Shift 1 · Q67Match List - I with List - II. List - I (Mixture of Compounds) : A. Diethyl amine + Ethyl amine B. Acetaldehyde + Acetone C. Ethanol +…MediumMatch the list
5 Apr 2026, Shift 1 · Q66Benzyl isocyanide can be obtained from A. [figure: benzyl bromide, $\mathrm{C_6H_5CH_2Br}$ ] $\xrightarrow{\mathrm{AgCN}}$ B. [figure:…MediumOtherHas a figure
7 Apr 2025, Shift 1 · Q69Which of the following amine (s) show (s) positive carbylamine test? A. [aniline: benzene ring bearing $\mathrm{NH_2}$ ] B.…EasyOtherHas a figure
3 Aug 2021, Shift 2 · Q60The number of isomers with molecular formula $\mathrm{C_3H_9N}$ , which will react with $\mathrm{CHCl_3 + KOH}$ is…MediumNumerical value
4 Aug 2021, Shift 1 · Q60Number of isomeric compounds with molecular formula $\mathrm{C_4H_{11}N}$ that will give carbylamine test is ________.EasyNumerical value
25 Feb 2021, Shift 2 · Q48Carbylamine test is used to detect the presence of primary amino group in an organic compound. Which of the following compound is formed…EasySingle correctHas 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.