- 1(current)
Q. No.Select the correct option based on statements below:
| Assertion (A): | Phenol does not react with NaHCO3 but 2,4,6-trinitrophenol does react with the evolution of CO2 |
| Reason (R): | 2,4,6-trinitrophenol is a stronger acid than carbolic 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. | (A) is False, but (R) is True. |
Subtopic: Phenols: Preparation & Properties |
Level 3: 35%-60%
Hints
Select the correct option based on the statements given below:
| Assertion (A): | Picric acid is more acidic than formic acid. |
| Reason (R): | Picric acid has three -COOH groups whereas formic acid has one -COOH group. |
| 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: Phenols: Preparation & Properties |
73%
Level 2: 60%+
Hints
Match the structures of the compounds given in Column I with the name of the compounds given in Column II.
| Column I(Structure) | Column II(Name) | ||
| A. |  |
(i). | Phenetole |
| B. |  |
(ii). | o-Cresol |
| C. |  |
(iii). | Catechol |
| D. |  |
(iv). | Resorcinol |
Codes:
| A | B | C | D | |
| 1. | (ii) | (iv) | (i) | (iii) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (iv) | (iii) | (ii) | (i) |
Subtopic: Phenols: Preparation & Properties |
84%
Level 1: 80%+
Hints
Select the correct option based on statements below:
| Assertion (A): | o-Nitrophenol is less soluble in water than the m and p-isomers. |
| Reason (R): | m and p-Nitrophenols exist as associated molecules. |
| 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. | (A) is False but (R) is True. |
Subtopic: Phenols: Preparation & Properties |
Level 3: 35%-60%
Hints
Select the correct option based on statements below:
| Assertion (A): | Ethanol is a weaker acid than phenol. |
| Reason (R): | Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH. |
| 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. | (A) is False but (R) is True. |
Subtopic: Phenols: Preparation & Properties |
Level 3: 35%-60%
Hints
Match the items of column I with items of column II and mark the correct option:
| Column I (Reaction) |
Column II (Reagents and uses) |
||
| A. | Kolbe's reaction | 1. | Heated copper at 573 K |
| B. | Reimer-Tiemann reaction | 2. | Conversion of phenol to salicylic acid |
| C. | Williamson's synthesis | 3. | Conversion of phenol to salicylaldehyde |
| D. | Conversion of alcohol to ketone | 4. | Reaction of alkyl halide with sodium alkoxide |
1. A-3 , B-1 , C-4 , D-2
2. A -2 , B-3, C-4 , D-1
3. A-4 , B-3 , C-2 , D-1
4. A-1 , B-2, C-3 , D-4
Subtopic: Alcohols: Preparation & Properties | Phenols: Preparation & Properties | Ethers: Preparation & Properties, Uses |
79%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Consider the two statements given below:
| I. | The given reaction is known as Kolbe’s reaction. |
| II. | The given reaction is known as Reimer - Tiemann reaction. |
1. Both Statement I and Statement II are true.
2. Statement I is true and Statement II is false.
3. Both Statement I and Statement II are false.
4. Statement I is false, Statement II is true.
Subtopic: Phenols: Preparation & Properties |
76%
Level 2: 60%+
Hints
Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| I: | The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group. |
| II: | o-Nitrophenol, m-nitrophenol and p-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring. |
| 1. | I is incorrect but II is correct. |
| 2. | Both I and II are correct. |
| 3. | Both I and II are incorrect. |
| 4. | I is correct but II is incorrect. |
Subtopic: Phenols: Preparation & Properties |
84%
Level 1: 80%+
NEET - 2022
Hints
- 1(current)
Q. No.
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