1
JEE Main 2026 (Online) 23rd January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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JEE Main 2026 (Online) 23rd January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 19 English

$$ \text { Identify (P) } $$

A
JEE Main 2026 (Online) 23rd January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 19 English Option 1
B
JEE Main 2026 (Online) 23rd January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 19 English Option 2
C
JEE Main 2026 (Online) 23rd January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 19 English Option 3
D
JEE Main 2026 (Online) 23rd January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 19 English Option 4
2
JEE Main 2026 (Online) 23rd January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Iodoform test can differentiate between

A. Methanol and Ethanol

B. $\mathrm{CH}_3 \mathrm{COOH}$ and $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}$

C. Cyclohexene and cyclohexanone

D. Diethyl ether and Pentan-3-one

E. Anisole and acetone

Choose the correct answer from the options given below :

A

A, B & E Only

B

A & D Only

C

A & E Only

D

B, C & E Only

3
JEE Main 2026 (Online) 23rd January Morning Shift
MCQ (Single Correct Answer)
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' $x$ ' is the product which is obtained from propanenitrile and stannous chloride in the presence of hydrochloric acid followed by hydrolysis. ' $y$ ' is the product which is obtained from the but-2-ene by the ozonolysis followed by hydrolysis. From the following, which product is not obtained when one mole of ' $x$ ' and one mole of ' $y$ ' react with each other in the presence of alkali followed by heating?

A

2-Methylpent-2-enal

B

2-Methylbut-2-enal

C

3-Methylbut-2-enal

D

Pent-2-enal

4
JEE Main 2026 (Online) 23rd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
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From the given following (A to D) cyclic structures, those which will not react with Tollen's reagent are:

JEE Main 2026 (Online) 23rd January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 23 English

A

A and D

B

A and B

C

B and D

D

B and C

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