1
JEE Main 2026 (Online) 28th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following reaction is NOT correctly represented?
A
JEE Main 2026 (Online) 28th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 31 English Option 1
B
JEE Main 2026 (Online) 28th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 31 English Option 2
C
JEE Main 2026 (Online) 28th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 31 English Option 3
D
JEE Main 2026 (Online) 28th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 31 English Option 4
2
JEE Main 2026 (Online) 28th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$ \text { Given below are two statements for the following reaction sequence. } $$

JEE Main 2026 (Online) 28th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 29 English Statement I : Compound ' $Z$ ' will give yellow precipitate with NaOI .

Statement II : Compound ' Q ' has two different types of ' H ' atoms (aromatic : aliphatic) in the ratio $1: 3$.

In the light of the above statements, choose the correct answer from the options given below :

A

Statement I is true but Statement II is false

B

Both Statement I and Statement II are true

C

Statement I is false but Statement II is true

D

Both Statement I and Statement II are false

3
JEE Main 2026 (Online) 28th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
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$$ \text { Given below are the four isomeric compounds }(\mathrm{P}, \mathrm{Q}, \mathrm{R}, \mathrm{~S}) $$

JEE Main 2026 (Online) 28th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 30 English

Identify correct statements from below.

A. $\mathrm{Q}, \mathrm{R}$ 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 $\mathrm{I}_2 / \mathrm{NaOH}$.

E. Q alone will deposit silver with Tollen's reagent

Choose the correct option.

A

C and E only

B

A and E only

C

A, B, D and E only

D

A, C and E only

4
JEE Main 2026 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The unsaturated ether on acidic hydrolysis produces carbonyl compounds as shown below :-

JEE Main 2026 (Online) 24th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English 1

Based on this, predict the solution/reagent that will help to distinguish "P" and "Q" obtained in the following reaction :-

JEE Main 2026 (Online) 24th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English 2
A

Saturated $\mathrm{NaHSO}_3$ solution

B

Fehling solution

C

Lucas reagent

D

2, 4 - DNP reagent

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