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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. | \(\mathrm{{(i) \; {CrO}_2 {Cl}_2, {CS}_2\\ (ii) ~{H}_2 {O}/H^+}}\) | II. | Reimer-Tiemann reaction |
| C. | \(\mathrm{{CO, HCl, Anhyd.~\\ {AlCl}_3 / {CuCl}}}\) | III. | Etard reaction |
| D. | \(\mathrm{{CHCl}_3, {NaOH}}\) | IV. | Rosenmund reduction |
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
Subtopic: Aldehydes & Ketones: Preparation & Properties |
93%
Level 1: 80%+
NEET - 2024
Hints
Subtopic: Name Reaction |
50%
Level 3: 35%-60%
NEET - 2024
Hints
Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options give below:
| Statement I: | Benzoic acid produces effervescence on treatment with aq. \(\mathrm{NaHCO}_3\) |
| Statement II: | The effervescence is due to the release of hydrogen gas. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are incorrect. |
| 3. | Statement I is correct but Statement II is incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Carboxylic Acids: Preparation & Properties |
63%
Level 2: 60%+
NEET - 2024
Hints
Which solution is part of Fehling solution 'A' (used in tests for reducing sugars and aldehydes)?
| 1. | Alkaline copper sulphate |
| 2. | Alkaline solution of sodium potassium tartrate (Rochelle's salt) |
| 3. | Aqueous sodium citrate |
| 4. | Aqueous copper sulphate |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
61%
Level 2: 60%+
NEET - 2024
Hints
Match the reactions listed in List-I with the appropriate reagents or conditions listed in List-II:
Choose the correct answer from the options given below:
| List-I (Reaction) |
List-II (Reagents/ Condition) |
||
| A. |  |
I. |  |
| B. |  |
II. | \(\mathrm{CrO}_3\) |
| C. |  |
III. | \(\begin{aligned} & \mathrm{KMnO}_4 \\ & \mathrm{KOH}, \Delta \end{aligned}\) |
| D. |  |
IV. | \(\mathrm{(i) \mathrm{O}_3\\ (ii) \mathrm{Zn}-\mathrm{H}_2 \mathrm{O}}\) |
| 1. | \(\text { A-III, B-I, C-II, D-IV }\) |
| 2. | \(\text { A-IV, B-I, C-II, D-III }\) |
| 3. | \(\text { A-I, B-IV, C-II, D-III }\) |
| 4. | \(\text { A-IV,B-I, C-III, D-II }\) |
Subtopic: Aldehydes & Ketones: Preparation & Properties | Carboxylic Acids: Preparation & Properties |
76%
Level 2: 60%+
NEET - 2024
Hints
Which of the following reagents is used to synthesize the hemiketal of acetone?
1. HCl
2. CH₃OH
3. NaOH
4. HCHO
Subtopic: Aldehydes & Ketones: Preparation & Properties |
63%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Nitriles are hydrolyzed to amides upon mild heating with an aqueous base or acid. The product of hydrolysis under stronger conditions is:
| 1. | Aldehyde | 2. | Ketone |
| 3. | Ester | 4. | Carboxylic acid |
Subtopic: Acid Derivatives - Preparation, Properties & Uses |
76%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
The following reaction is one of many steps in the laboratory synthesis of cholesterol. What type of reaction is it?
1. Reduction reaction.
2. Oxidation reaction.
3. Catalytic hydrogenation.
4. Electrophilic substitution.
1. Reduction reaction.
2. Oxidation reaction.
3. Catalytic hydrogenation.
4. Electrophilic substitution.
Subtopic: Aldehydes & Ketones: Preparation & Properties |
84%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Name Reaction |
77%
Level 2: 60%+
NEET - 2023
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