(A) Q, R, S all three give 2, 4 DNP test as they have Aldehyde/ketone group
(C) Q & R gives sooty flame
(E) Q gives Tollens reagent test
JEE Main 2026 — Chemistry Organic Chemistry
2026mcqhard
Given below are the four isomeric compounds (P,Q,R,S)
Identify correct statements from below.
A. Q,R and S will give precipitate with 2,4−DNP.
B. P and Q will give positive Bayer's test.
C. Q and R will give sooty flame.
D. R and S will give yellow precipitate with I2/NaOH.
E. Q alone will deposit silver with Tollen's reagent Choose the correct option.
Official previous-year question
Held on 28 Jan 2026 · Verified 6 Jul 2026.
Options
- A
A, B, D and E only
- B
A and E only
- C
C and E only
- D
A, C and E only
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
JEE Main Organic Chemistry in other years
More JEE Main Organic Chemistry questions
Consider the following reaction sequence  Compound $(\mathrm{y})$ develops characteristic colour with neutral $\mathrm{FeCl}_{3}$ solution. Identify the INCORRECT statement from the following for the above sequence.
2026medium
Given below are two statements: Statement I: Benzene is nitrated to give nitrobenzene, which on further treatment with $\mathrm{CH}_{3} \mathrm{COCl} / \mathrm{AlCl}_{3}$ will give  Statement II: $-\mathrm{NO}_{2}$ group is a $m$-directing, and deactivating group. In the light of the above statements, choose the most appropriate answer from the options given below
2026medium
Given below are two statements: Statement I: $\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\oplus}{\mathrm{C}}$ is more stable than $\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_{3}$ as nine hyperconjugation interactions are possible in $\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\oplus}{\mathrm{C}}$. Statement II: $\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_{3}$ is less stable than $\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\oplus}{\mathrm{C}}$ as only three hyperconjugation interactions are possible in $\stackrel{\oplus}{\mathrm{C}} \mathrm{H}_{3}$. In the light of the above statements, choose the correct answer from the options given below
2026medium
Which of the following reactions is an example of Wurtz reaction?
2026easy
A hydroxy compound $(\mathrm{X})$ with molar mass $122 \mathrm{~g} \mathrm{~mol}^{-1}$ is acetylated with acetic anhydride, using a large excess of the reagent ensuring complete acetylation of all hydroxyl groups. The product obtained has a molar mass of $290 \mathrm{~g} \mathrm{~mol}^{-1}$. The number of hydroxyl groups present in compound (X) is:
2026medium
Other Chemistry topics for JEE Main
Keep practicing Organic Chemistry
Work through every JEE Main Organic Chemistry PYQ, year by year.