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. |
An appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene is/are :
1. | |
2. | |
3. | \(\mathrm{CH_3-CH_2-CH_2-O-CH_3+HBr}\) |
4. | \(\mathrm{(CH_3)_3C-OC_2H_5+HI}\) |
Match the reactions from Column-I with their corresponding descriptions from Column-II and select the correct option.
Column-l (Name of Reaction) |
Column-ll (Description of Reaction) |
||
A. |
Reimer-Tiemann reaction |
I. |
Conversion of phenol to o-hydroxysalicylic aid |
B. |
Kolbe's reaction |
II. |
Heated copper at 573K |
C. |
Conversion of 2alcohol to a ketone |
III. |
Reaction of an alkyl halide |
D. |
Williamson's synthesis |
Iv. |
Conversion of phenol to salicylaldehyde |
Codes:
A | B | C | D | |
1. | II | III | IV | I |
2. | III | IV | I | II |
3. | I | IV | III | II |
4. | IV | I | II | III |
Match the starting material in Column I with the products formed (Column II) in the reaction with HI.
Column I |
Column II |
||
A. | ![]() |
1. | ![]() |
B. | ![]() |
2. | ![]() |
C. | ![]() |
3. | ![]() |
D. | ![]() |
4. | ![]() |
5. | ![]() |
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 3 | 1 | 5 | 2 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 5 | 2 | 1 |
Phenol and ethanol can be differentiated through their distinct reactions with:
I. Br2/water
II. Na
III. Neutral FeCl3
Choose the correct option:
1. I, II
2. II, III
3. I only
4. I, III
The most acidic compound among the following is:
1. Benzyl alcohol
2. Cyclohexanol
3. Phenol
4. m-Chlorophenol
The correct IUPAC name of the given compound is:
1. 2-Chloro-5-hydroxyhexane
2. 2-Hydroxy-5-chlorohexane
3. 5-Chlorohexan-2-ol
4. 2-Chlorohexan-5-ol
The most reactive compound among the following for electrophilic aromatic substitution is:
1. | 2. | ||
3. | 4. |
The most acidic compound among the following is:
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |
Identify Z in the following reaction:
\(CH_3CH_2CH=CH_2 \xrightarrow[H_2O,\ H_2O_2,\ OH^-]{B_2H_6} Z \)
1. | \(CH_3CH_2CH_2CH_2OH\) | 2. | \(CH_3CH_2 \ C \ HCH_3 \\~~~~~~~~~~~~~~~~~~| \\~~~~~~~~~~~~~~~~OH\) |
3. | \(CH_3CH_2CH_2CHO \) | 4. | \(CH_3CH_2CH_2CH_3 \) |