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Q. No.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.
1. Both Statement I and Statement II are true.
Subtopic: Phenols: Preparation & Properties |
76%
Level 2: 60%+
Hints
Match the items in Column-I with the items in Column-II.
1. a-ii; b-iii; c-i
2. a-ii; b-ii; c-i
3. a-iii; b-i; c-i
4. a-iii; b-ii; c-ii
| Column-I | Column-II | ||
| a. |  |
i. | Tertiary alcohol |
| b. | H2C=CH−CH2OH | ii. | Primary alcohol |
| c. |
CH3−CH2−CH2−OH |
iii. | Secondary alcohol |
2. a-ii; b-ii; c-i
3. a-iii; b-i; c-i
4. a-iii; b-ii; c-ii
Subtopic: Alcohols: Preparation & Properties |
87%
Level 1: 80%+
Hints
Given below are two statements:
| Assertion (A): | Ortho and para nitrophenols are more acidic than phenol. |
| Reason (R): | Phenoxide ion formed by ortho and para nitrophenols are more stable than pehenoxide ion formed by phenol. |
| 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: Electrophilic Substitution Reactions, Uses of Phenols |
85%
Level 1: 80%+
Hints
Match the items in Column I with the items in Column II.
| Column I (Compounds) |
Column II (Classification) |
a.  |
i. Tertiary alcohol |
b.  |
ii. Primary alcohol |
c.  |
iii. Secondary alcohol |
1. a-ii; b-iii; c-i
2. a-iii; b-ii; c-i
3. a-iii; b-i; c-ii
4. a-i; b-ii; c-iii
Subtopic: Alcohols: Preparation & Properties |
88%
Level 1: 80%+
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
Given below are two statements:
In light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Lucas reagent, a mixture of concentrated HCl and anhydrous ZnCl₂, is used to distinguish primary, secondary, and tertiary alcohols based on their reactivity. |
| Statement II: | Primary alcohols are most reactive and immediately produce turbidity at room temperature on reaction with Lucas Reagent. |
| 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: Alcohols: Preparation & Properties |
82%
Level 1: 80%+
NEET - 2022
Hints
Given below are two statements:
| Statement I: | The product of the reaction of phenol with bromine depends on the nature of the solvent. |
| Statement II: | The reaction of phenol with bromine in CHCl3 gives a monosubstituted bromo derivative whereas the reaction of phenol with bromine water yields a trisubstituted bromo derivative of phenol. |
Which of the following is correct?
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Electrophilic Substitution Reactions, Uses of Phenols |
86%
Level 1: 80%+
NEET - 2022
Hints
Consider the given two statements:
Choose the correct option:
| Assertion (A): | Hydroxyketones are not directly used in the Grignard reaction. |
| Reason (R): | Grignard reagents react with the hydroxyl group. |
Choose the correct option:
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Alcohols: Preparation & Properties |
68%
Level 2: 60%+
Hints
| Assertion (A): | The order of reactivity of alcohol in Luca's test is 3° >2° > 1° |
| Reason (R): | The order of stability of carbocation intermediate is 3° >2° > 1° |
| 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 correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Alcohols: Preparation & Properties | Mechanism of Dehydration, Methanol & Ethanol |
79%
Level 2: 60%+
Hints
Match the following:
| List-I | List-II | ||
| i. | O2N-C6H4-OCH3 (p) | a. | 4-Ethoxy-1,1-dimethylcyclohexane |
| ii. | C2H5OCH2-CH(CH3)2 | b. | 1-Chloro-2-methoxyethane |
| iii. | CH3OCH2CH2Cl | c. | 1-Ethoxy-2-methylpropane |
| iv. |  |
d. | 1-Methoxy-4-nitrobenzene |
| i | ii | iii | iv | |
| 1. | d | c | b | a |
| 2. | c | d | b | a |
| 3. | a | c | b | d |
| 4. | b | c | d | a |
Subtopic: Ethers: Preparation & Properties, Uses |
91%
Level 1: 80%+
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