JEE Mains JEE Advance BITSAT
JEE Mains | PYQ

Year

All years 2026 2025 2024 2023 2022 2021

Which of the following reactions will not yield propionic acid ?

Which one of the following compounds will give orange precipitate when treated with \( 2,4 \)-dinitrophenyl hydrazine?

For the reaction given below:

The compound which is not formed as a product in the reaction is a :

Consider the above reaction, the product ‘\( X \)’ and ‘\( Y \)’ respectively are:

[where \( \mathrm{Et \Rightarrow -C_2H_5} \), \( \mathrm{{}^t}Bu{ \Rightarrow (CH_3)_3C^-} \)]
Consider the above reaction sequence, Product “A” and Product “B” formed respectively are:

The product "A" in the above reaction is:

Consider the given reaction, the product ‘X’ is:

The structures of A and B formed in the following reaction are: \( [\mathrm{Ph} = -\mathrm{C}_6\mathrm{H}_5] \)

The number of nitrogen atoms in a semicarbazone molecule of acetone is ______

Consider the above reaction, the major product ‘P’ is:

Which among the above compound/s does /do not form Silver mirror when treated with Tollen’s reagent?

In Tollen’s test for aldehyde, the overall number of electrons transferred to the Tollen’s reagent formula, \( [\mathrm{Ag(NH_3)_2}]^+ \) per aldehyde group to form silver mirror is_____.

The structure of the starting compound P used in the reaction given below is:

____________ grams of 3-Hydroxy propanal \( \text{MW} = 74 \) must be dehydrated to produce \( 7.8 \, \text{g} \) of acrolein \( \text{MW} = 56 \) \( \mathrm{C_3H_4O} \) if the percentage yield is \( 64 \). (Round off to the Nearest Integer).
[Given: Atomic masses: \( \text{C} : 12.0 \, \text{u} \), \( \text{H} : 1.0 \, \text{u} \), \( \text{O} : 16.0 \, \text{u} \)]

Which of the following reagent is suitable for the preparation of the product in the above reaction?

The major products formed in the following reaction sequence A and B are:

Mesityl oxide is a common name of :

← PreviousQuestion 6 of 17Next →

JEE Main 2021 17th March Morning Shift

The product "A" in the above reaction is: