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Q. No.
Subtopic: Aldehydes & Ketones: Preparation & Properties |
74%
Level 2: 60%+
NEET - 2024
Hints
Match the reagents in List-I with the corresponding reactions in List-II:
Choose the correct answer from the options given below:
1. A-II, B-III, C-I, D-IV
2. A-IV, B-III, C-I, D-II
3. A-I, B-III, C-IV, D-II
4. A-II, B-I, C-III, D-IV
| List-I (Reagent) |
List-II (Name of the reaction) |
||
| A. | \(\mathrm{{H}_2, {Pd}-{Ba}S {O}_4}\) | I. | Gattermann-Koch reaction |
| B. | \(\mathrm{{(i) \; {CrO}_2 {Cl}_2, {CS}_2\\ (ii) {H}_2 {C}}}\) | II. | Reimer-Tiemann reaction |
| C. | \(\mathrm{{CO, HCl, Anhyd.~\\ {AlCl}_3 / {CuCl}}}\) | III. | Etard reaction |
| D. | \(\mathrm{{CHCl}_3, {NaOH}}\) | IV. | Rosenmund reduction |
1. A-II, B-III, C-I, D-IV
2. A-IV, B-III, C-I, D-II
3. A-I, B-III, C-IV, D-II
4. A-II, B-I, C-III, D-IV
Subtopic: Aldehydes & Ketones: Preparation & Properties |
93%
Level 1: 80%+
NEET - 2024
Hints
Identify the final product [D] obtained in the following sequence of reactions:
| 1. | \(\mathrm{HC\equiv C^-~Na^+}\) | 2. |  |
| 3. |  |
4. | \(\mathrm{C_4H_{10}}\) |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
76%
Level 2: 60%+
NEET - 2023
Hints
Subtopic: Aldehydes & Ketones: Preparation & Properties | Carboxylic Acids: Preparation & Properties | Name Reaction |
64%
Level 2: 60%+
NEET - 2022
Hints
The correct IUPAC name of the following compound is:
| 1. | 2-Ethylhex-3-en-4-one | 2. | 4-Methylhex-3-en-2-one |
| 3. | 4-Ethylpent-3-en-2-one | 4. | 3-Methylhex -3-en-4-one |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
87%
Level 1: 80%+
NEET - 2022
Hints
Subtopic: Aldehydes & Ketones: Preparation & Properties |
82%
Level 1: 80%+
NEET - 2021
Hints
The name of the electrophile involved in the below reaction is:
1. Dichloromethyl cation \((^{+}CHCl_{2})\)
2. Formyl cation \((^{+}CHO)\)
3. Dichloromethyl anion \((^{-}CHCl_{2})\)
4. Dichlorocarbene (:CCl2)
Subtopic: Aldehydes & Ketones: Preparation & Properties |
74%
Level 2: 60%+
NEET - 2018
Hints
What is the correct order of the carboxylic acids' strength?
| I. |  |
II. |  |
III. |  |
| 1. | I > II > III | 2. | II > III > I |
| 3. | III > II > I | 4. | II > I > III |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
64%
Level 2: 60%+
NEET - 2016
Hints
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Which of the chemical reagents can be used to distinguish between cis-cyclopenta-1,2-diol and trans-cyclopenta-1,2-diol?
1. Ozone
2. MnO2
3. Aluminium isopropoxide
4. Acetone
Subtopic: Aldehydes & Ketones: Preparation & Properties |
Level 3: 35%-60%
NEET - 2016
Hints
An organic compound X having molecular formula C5H10O yields phenyl hydrazone and gives a negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be:
1. Pentanal
2. 2-Pentanone
3. 3-Pentanone
4. n-Amyl alcohol
2. 2-Pentanone
3. 3-Pentanone
4. n-Amyl alcohol
Subtopic: Aldehydes & Ketones: Preparation & Properties |
67%
Level 2: 60%+
NEET - 2015
Hints
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