The major product Z formed in the following sequence of reactions is : [figure] (X = monochlorinated product)
- C2H5-N=N-OH
- C2H5OH
- C2H5NO2
- C2H5NH2
Previous year questions with solutions · 2000 – 2026
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 4 | 2 | 2 | 4.44% ↓33.3% |
| 2025 | 3 | 1 | 3 | 6.67% ↑34.7% |
| 2024 | 5 | 2 | 2.5 | 4.95% ↑26.2% |
| 2023 | 2 | 1 | 2 | 3.92% ↓1% |
| 2022 | 4 | 2 | 2 | 3.96% ↓1% |
| 2021 | 2 | 1 | 2 | 4.00% ↑80% |
| 2020 | 1 | 1 | 1 | 2.22% →0% |
| 2019 | 1 | 1 | 1 | 2.22% →0% |
| 2018 | 1 | 1 | 1 | 2.22% ↓50% |
| 2017 | 2 | 1 | 2 | 4.44% ↑33.3% |
| 2016 | 3 | 2 | 1.5 | 3.33% →0% |
| 2015 | 3 | 2 | 1.5 | 3.33% ↓25% |
| 2014 | 2 | 1 | 2 | 4.44% ↑31.9% |
| 2013 | 3 | 2 | 1.5 | 3.37% ↑169.7% |
| 2012 | 1 | 2 | 0.5 | 1.25% ↓74.7% |
| 2011 | 4 | 2 | 2 | 4.94% ↓1.2% |
| 2010 | 4 | 2 | 2 | 5.00% ↑155% |
| 2009 | 1 | 1 | 1 | 1.96% →0% |
| 2008 | 1 | 1 | 1 | 1.96% ↓2% |
| 2007 | 1 | 1 | 1 | 2.00% ↓50% |
| 2006 | 2 | 1 | 2 | 4.00% ↓33.3% |
| 2005 | 3 | 1 | 3 | 6.00% ↑188% |
| 2004 | 1 | 1 | 1 | 2.08% ↑2.1% |
| 2003 | 1 | 1 | 1 | 2.04% ↑2% |
| 2002 | 1 | 1 | 1 | 2.00% ↑2% |
| 2001 | 1 | 1 | 1 | 1.96% →0% |
| 2000 | 1 | 1 | 1 | 1.96% |
The major product Z formed in the following sequence of reactions is : [figure] (X = monochlorinated product)
Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:
The major product D formed in the following reaction sequence is : [figure]
The compound that does not undergo Friedel-Crafts alkylation reaction but gives a positive carbylamine test is :
The product formed from the following reaction sequence is [figure]
The product formed from the following reaction sequence is : [figure]
Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
Which of the following amine will give the carbylamine test?
Nitration of aniline in strong acidic medium also gives m-nitroaniline because
Which one of the following nitro-compounds does not react with nitrous acid?
The following reaction [figure] is known by the name
On hydrolysis of a "compound", two compounds are obtained. One of which on treatment with sodium nitrite and hydrochloric acid gives a product which does not respond to iodoform test. The second one reduces Tollens reagent and Fehling's solution. The "compound" is
Some reactions of amines are given. Which one is not correct?
An organic compound (C3H9N) (A), when treated with nitrous acid, gave an alcohol and N2 gas was evolved. (A) on warming with CHCl3 and caustic potash gave (C) which on reduction gave isopropylmethylamine. Predict the structure of (A)
Which of the following statements about primary amines is false?
Predict the product. [figure]
The final product C, obtained in this reaction [figure] would be
CH3CH2Cl NaCN X Ni/H2 Y acetic anhydride Z Z in the above reaction sequence is
A reduction B CHCl3/KOH C reduction N-methylaniline then A is