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. |
Potassium permanganate reagent is used for :
1. Oxidation of primary alcohol to carboxylic acid.
2. Oxidation of primary alcohol to aldehyde.
3. Bromination of phenol to 2,4,6-tribromophenol.
4. Dehydration of propan-2-ol to propene.
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 |
Match the structures of the compounds given in Column I with the name of the compounds given in Column II.
Column I(Structure) | Column II(Name) | ||
A. | |
(i). | Phenetole |
B. | (ii). | o-Cresol | |
C. | (iii). | Catechol | |
D. | (iv). | Resorcinol |
Codes:
A | B | C | D | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (iii) | (i) | (iv) | (ii) |
3. | (i) | (iv) | (iii) | (ii) |
4. | (iv) | (iii) | (ii) | (i) |
Upon dehydration, the below mentioned compound will not give:
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. | \(CH_3CH_2CH_2CH_3 \) |
The reagent used for the bromination of phenol to 2,4,6-tribromophenol is/are:
1. Bromine water
2. Br2, CS2
3. Br2, CCl4
4. AgBr