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Q. No.
Subtopic: Name Reaction |
62%
From NCERT
NEET - 2021
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Subtopic: Aldehydes & Ketones: Preparation & Properties |
80%
From NCERT
NEET - 2021
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Match List-I with List-II.
| List-I (Substrates of reactions) | List II (Name of reactions) | ||
| (a) |  |
(i) | Hell-Volhard- Zelinsky reaction |
| (b) |  |
(ii) | Gattermann- Koch reaction |
| (c) |  |
(iii) | Haloform reaction |
| (d) |  |
(iv) | Esterification |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (iv) | (iii) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (iii) | (ii) | (i) | (iv) |
Subtopic: Carboxylic Acids: Preparation & Properties |
88%
From NCERT
NEET - 2021
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Consider the below reaction and identify the missing reagent/chemical.
\(\mathrm{CH_{3}CH_{2}COO^{-}Na^{+} \ \xrightarrow[\textbf{Heat}]{\textbf{NaOH, + ? }} \ CH_{3}CH_{3} \ + \ Na_{2}CO_{3}}\)
1. CaO
2. DIBAL-H
3. B2H6
4. Red Phosphorus
Subtopic: Carboxylic Acids: Preparation & Properties |
75%
From NCERT
NEET - 2021
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The reactant 'A' in the below-mentioned reaction is:
| 1. | Benzoyl chloride | 2. | Toluene |
| 3. | Acetophenone | 4. | Benzoic acid |
Subtopic: Acid Derivatives - Preparation, Properties & Uses |
71%
From NCERT
NEET - 2020
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An acid that forms an anhydride (X) on heating and an acid imide (Y) on strong heating with ammonia is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Carboxylic Acids: Preparation & Properties |
82%
From NCERT
NEET - 2020
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I | The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole-dipole interactions. |
| Statement II | The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding. |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Statement I is incorrect but Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct but Statement II is incorrect. |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
63%
From NCERT
NEET - 2022
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Match List - I with List - II.
Choose the correct answer from the options given below:
| List-I (Products formed) |
List - II (Reaction of carbonyl compound with) |
||
| (A) | Cyanohydrin | (I) | NH₂OH |
| (B) | Acetal | (II) | RNH₂ |
| (C) | Schiff's base | (III) | Alcohol |
| (D) | Oxime | (IV) | HCN |
| (A) | (B) | (C) | (D) | |
| 1. | (IV) | (III) | (II) | (I) |
| 2. | (III) | (IV) | (II) | (I) |
| 3. | (II) | (III) | (IV) | (I) |
| 4. | (I) | (III) | (II) | (IV) |
Subtopic: Name Reaction |
89%
From NCERT
NEET - 2022
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\(\mathrm{RMgX}+\mathrm{CO}_{2} \underset{\bf\text { ether }}{\stackrel{\bf\text { dry }}{\longrightarrow}} \mathrm{Y} \xrightarrow{{\mathrm{H}_{3} \mathrm{O}^{+}}}RCOOH\)
What is Y in the above reaction?
1. (RCOO)2Mg
2. RCOO-Mg+X
3. R3CO-Mg+X
4. RCOO-X+
What is Y in the above reaction?
1. (RCOO)2Mg
2. RCOO-Mg+X
3. R3CO-Mg+X
4. RCOO-X+
Subtopic: Carboxylic Acids: Preparation & Properties |
86%
From NCERT
NEET - 2022
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Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Name Reaction |
53%
From NCERT
NEET - 2022
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