- 1(current)
Q. No.| 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
Select the correct option based on statements below:
| Assertion (A): | Boiling points of alcohols and ethers are high. |
| Reason (R): | They can form intermolecular hydrogen bonding. |
| 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: Alcohols: Preparation & Properties |
Level 3: 35%-60%
Hints
Select the correct option based on statements below:
| Assertion (A): | p-Nitrophenol is more acidic than phenol. |
| Reason (R): | Nitro group helps in the stabilization of the phenoxide ion by dispersal of negative charge due to resonance. |
| 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: Alcohols: Preparation & Properties |
87%
Level 1: 80%+
Hints
Select the correct option based on the statements given below:
| Assertion (A): | The addition reaction of water to but-1-ene in an acidic medium yields butan-1-ol. |
| Reason (R): | Addition of water in an acidic medium proceeds through the formation of a primary carbocation. |
| 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: Alcohols: Preparation & Properties |
68%
Level 2: 60%+
Hints
Select the correct option based on statements below:
| Assertion (A): | The solubility of alcohols in water decreases with an increase in the number of carbon atoms. |
| Reason (R): | The non-polar alkyl group or the hydrophobic portion supports the solubility of alcohol. |
| 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: Alcohols: Preparation & Properties |
68%
Level 2: 60%+
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
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
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
Match the items of Column-I with items given in Column-II.
| Column-l | Column-ll | ||
| A. | Solvent used in perfumes | I. | Neutral ferric chloride |
| B. | Wood spirit | II. | Glycerol |
| C. | Reagent used for detection of phenolic group | III. | Methanol |
| D. | By-product of soap industry used in cosmetics | IV. | Ethanol |
Codes:
| A | B | C | D | |
| 1. | II | III | IV | I |
| 2. | III | I | IV | II |
| 3. | I | IV | III | II |
| 4. | IV | III | I | II |
Subtopic: Alcohols: Preparation & Properties |
79%
Level 2: 60%+
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
- 1(current)
Q. No.
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