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. |
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. |
Select the correct option based on statements 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. |
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. |
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. |
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.
Match the structures of the compounds given in Column I with the name of the compounds given in Column II.
Column I | Column II | ||
A. | 1. | Phenetole | |
B. | 2. | o-Cresol | |
C. | 3. | Catechol | |
D. | 4. | Resorcinol |
Codes:
A | B | C | D | |
1. | 2 | 4 | 1 | 3 |
2. | 3 | 1 | 4 | 2 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 3 | 2 | 1 |