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Q. No.
The Iodoform test is not given by:
1. CH3COCH2COOC2H5
2. CH3COCH3
3. CH3CH2COCH3
4. CH3CH2CHOHC2H5
Subtopic: Aldehydes & Ketones: Preparation & Properties |
76%
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2-Methyl propene on oxidation with hot KMnO4 gives:
1. Acetone
2. Ethanoic acid
3. CO2 and H2O
4. Both 1 & 3
Subtopic: Aldehydes & Ketones: Preparation & Properties |
73%
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Subtopic: Acid Derivatives - Preparation, Properties & Uses |
61%
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Select the correct option based on statements below:
| Assertion (A): | Acetic acid does not undergo a haloform reaction. |
| Reason (R): | Acetic acid is a stronger acid than formic acid. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Name Reaction |
54%
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Select the correct option based on statements below:
| Assertion (A): | Nitration of benzaldehyde gives m-nitrobenzaldehyde. |
| Reason (R): | Formyl group increases the electron density on the ring at the meta position. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Name Reaction |
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Select the correct option based on statements below:
| Assertion (A): | Acetyl chloride doesn't show a haloform reaction. |
| Reason (R): | Acetyl chloride has no α-Hydrogen. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Name Reaction |
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Select the correct option based on statements below:
| Assertion (A): | 2,2-Dimethylpropanal also shows Cannizzaro reaction. |
| Reason (R): | It contains a sterically hindered -H atom. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Name Reaction |
65%
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Select the correct option based on statements below:
| Assertion (A): | Benzaldehyde undergoes a condensation reaction when heated in the presence of KCN. |
| Reason (R): | Benzaldehyde has no α- H atom. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Isomers & Reaction Mechanism |
52%
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Select the correct option based on statements below:
| Assertion (A): | The addition of ammonia derivatives to carbonyl compounds is carried out in a weakly acidic medium. |
| Reason (R): | In a weakly acidic medium, the attacking nucleophile is also protonated. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Name Reaction |
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| Assertion (A): | Aldehydes are more reactive than ketones in nucleophilic addition reactions. |
| Reason (R): | The magnitude of positive charge present on the carbonyl carbon of aldehydes is more than that of ketones. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Aldehydes & Ketones: Preparation & Properties |
73%
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