JEE Mains JEE Advance BITSAT
JEE Mains | PYQ

Year

All years 2026 2025 2024 2023 2022 2021

Find out the major products from the following reactions.

The number of hyperconjugation structures involved to stabilize carbocation formed in the above reaction is _________.

Product \([X]\) formed in the above reaction is :

Find out the major product from the following reaction.

In a reaction,

reagents ‘X’ and ‘Y’ respectively are:

Find out the major product for the following reaction.

Number of isomeric compounds with molecular formula \( \mathrm{C}_9\mathrm{H}_{10}\mathrm{O} \) which (i) do not dissolve in \( \mathrm{NaOH} \) (ii) do not dissolve in \( \mathrm{HCl} \). (iii) do not give orange precipitate with \( 2,4\text{-DNP} \) (iv) on hydrogenation give identical compound with molecular formula \( \mathrm{C}_9\mathrm{H}_{12}\mathrm{O} \) is _________.

The product formed in the following multistep reaction is:

In the reaction given below

‘B’ is:

A compound ‘\( X \)’ when treated with phthalic anhydride in presence of concentrated \( \mathrm{H_2SO_4} \) yields ‘\( Y \)’. ‘\( Y \)’ is used as an acid base indicator.‘\( X \)’ and ‘\( Y \)’ are respectively.

Incorrect method of preparation for alcohols from the following is:

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Butan-\( 1 \)-ol has higher boiling point than ethoxyethane.
Assertion B : Extensive hydrogen bonding leads to stronger association of molecules.
In the light of the above statements, choose the correct answer from the options given below:

Suitable reaction condition for preparation of Methyl phenyl ether is:

For the given reaction

The total number of possible products formed by tertiary carbocation of A is _____.

‘R’ formed in the following sequence of reactions is:

In the cumene to phenol preparation in presence of air, the intermediate is:

Decreasing order of dehydration of the following alcohols is:

Compound ‘B’ is:

In the following reaction, ‘B’ is:

The increasing order of \( pK_a \) for the following phenols is:
\( (A) \) \( 2, 4 \) - Dinitrophenol \( (B) \) \( 4 \) - Nitrophenol \( (C) \) \( 2, 4, 5 \) – Trimethylphenol \( (D) \) Phenol \( (E) \) \( 3 \)-Chlorophenol
Choose the correct answer from the options given below:

← PreviousQuestion 5 of 20Next →

JEE Main 2023 1st Feb Evening Shift

In a reaction,

reagents ‘X’ and ‘Y’ respectively are: