Number of molecules from below which cannot give iodoform reaction is : Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol.
- 4
- 3
- 5
- 2
Previous year questions with solutions · 2025 – 2026
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 24 | 19 | 1.3 | 5.05% same as last year |
| 2025 | 24 | 19 | 1.3 | 5.05% |
Number of molecules from below which cannot give iodoform reaction is : Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol.
The major product (P) in the following reaction is : Ph- O \|C- O \|C-H [ ]KOH Major ProductP
Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below :
Consider the following molecules: [figure] The correct order of rate of hydrolysis is :
Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product? Choose the correct answer from the options given below:
The product (P) formed in the following reaction is : [figure]
[figure] 0.1 mole of compound 'S' will weigh g. (Given molar mass in g mol-1 C : 12, H : 1, O : 16)
In the Claisen-Schmidt reaction to prepare dibenzalacetone from 5.3 g of benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was %.
Both acetaldehyde and acetone (individually) undergo which of the following reactions? Choose the correct answer from the options given below:
The compounds that produce CO2 with aqueous NaHCO3 solution are: Choose the correct answer from the options given below:
The total number of compounds from below when treated with hot KMnO4, giving benzoic acid is: [figure] , [figure] , [figure] , [figure] , [figure] , [figure] , [figure] , [figure]
Which of the following arrangements with respect to their reactivity in nucleophilic addition reaction is correct?
Aman has been asked to synthesise the molecule [figure] He thought of preparing the molecule using an aldol condensation reaction. He found a few cyclic alkenes in his laboratory. He thought of performing ozonolysis reaction on alkene to produce a dicarbonyl compound followed by aldol reaction to prepare "x". Predict the suitable alkene that can lead to the formation of "x".
Match List - I with List - II. Choose the correct answer from the options given below :
The major product of the following reaction is : [figure]
Given below are two statements: Consider the following reaction [figure] In the light of the above statements, choose the correct answer from the options given below :
The compounds which give positive Fehling's test are : Choose the correct answer from the options given below :
[figure] Residue (A) + HCl (dil) Compound (B) Structure of residue (A) and compound (B) formed respectively is :