- 1(current)
Q. No.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. |
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 |
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. |
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. |
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. |
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
Assertion : The order of reactivity of alcohol in Luca's test is 3° >2° > 1°
Reason : The order of stability of carbocation intermediate is 3° >2° > 1°
1. Both assertion and reason are true, and reason is the correct explanation of the assertion
2. Both assertion and reason are true, but reason is not correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
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
| 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
| Statement I: | In Lucas test, primary, secondary, and tertiary alcohols are distinguished on the basis of their reactivity with conc. \(HCl + ZnCl_2\), known as Lucas Reagent. |
| 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 correct |
| 3. | Both I and II are incorrect |
| 4. | I is correct but II is incorrect |
- 1(current)
Q. No.
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