Q. No.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: Â Phenols: Preparation & Properties |
 83%
Level 1: 80%+
NEET - 2022
Hints
Match the reagents (List-I) with the products (List-II) obtained from phenol:
| List-I | List-II | ||
| (A) | (i) NaOH (ii) CO2 (iii) H+ |
(I) | Benzoquinone |
| (B) | (i) Aqueous NaOH + CHCl3 (ii) H+ |
(II) | Benzene |
| (C) | Zn dust, \(\Delta\) | (III) | Salicylaldehyde |
| (D) | Na2Cr2O7, H2SO4 | (IV) | Salicylic acid |
| (A) | (B) | (C) | (D) | |
| 1. | (III) | (IV) | (I) | (II) |
| 2. | (II) | (I) | (IV) | (III) |
| 3. | (IV) | (III) | (II) | (I) |
| 4. | (IV) | (II) | (I) | (III) |
Subtopic: Â Phenols: Preparation & Properties |
 89%
Level 1: 80%+
NEET - 2022
Hints
Which one of the following reaction sequences is the incorrect method to prepare phenol?
| 1. | Aniline, NaNO2 + HCl, H2O, heating |
| 2. | Cumene, O2, H3O+ |
| 3. |  |
| 4. |  |
Subtopic: Â Phenols: Preparation & Properties |
 68%
Level 2: 60%+
NEET - 2022
Hints
The most reactive compound among the following for electrophilic aromatic substitution is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Â Phenols: Preparation & Properties |
 61%
Level 2: 60%+
NEET - 2020
Hints
Subtopic: Â Phenols: Preparation & Properties |
 89%
Level 1: 80%+
NEET - 2020
Hints
Subtopic: Â Phenols: Preparation & Properties |
 85%
Level 1: 80%+
NEET - 2019
Hints
Links
Subtopic: Â Phenols: Preparation & Properties |
 89%
Level 1: 80%+
NEET - 2017
Hints
The reaction of phenol with chloroform in the presence of dilute sodium hydroxide finally introduces a functional group X. The X is:
1. -CH2Cl
2. -COOH
3. -CHCl2
4. -CHO
Subtopic: Â Phenols: Preparation & Properties |
 74%
Level 2: 60%+
NEET - 2015
Hints
Links
Subtopic: Â Phenols: Preparation & Properties |
 82%
Level 1: 80%+
AIPMT - 2010
Hints
Among the following four compounds
| a. | Phenol | b. | methyl phenol |
| c. | meta-nitrophenol | d. | para-nitrophenol |
The acidity order is:
1. c > d > a > b
2. a > d > c > b
3. b > a > c > d
4. d > c > a > b
Subtopic: Â Phenols: Preparation & Properties |
 86%
Level 1: 80%+
AIPMT - 2010
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