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Q. No.Match the name of the reagents (given in Column A) with the representation of the reagent (given in Column B):
Column A
Column B
i.
Lucas' reagent
a.
Alkaline KMnO4
ii.
Baeyer's reagent
b.
CH3MgBr
iii.
PCC
c.
ZnCl2+HCl
iv.
Grignard reagent
d.
Choose the correct answer from the options given below:
1. i‐c, ii‐d, iii‐a, iv‐b
2. i‐b, ii‐c, iii‐a, iv‐d
3. i‐b, ii‐d, iii‐a, iv‐c
4. i‐c, ii‐a, iii‐d, iv‐b
Subtopic: Alcohols: Preparation & Properties |
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Level 1: 80%+
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Williamson synthesis does not encourage the preparation of ether if the alkyl halide is:
| 1. | \(\left(\mathrm{CH}_3\right)_3 C\mathrm{Br} \) | 2. | \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br} \) |
| 3. | \(\mathrm{CH}_3 \mathrm{Br} \) | 4. |  |
Subtopic: Ethers: Preparation & Properties, Uses |
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Level 1: 80%+
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In the given reactions:
X and Y are respectively:
1. Bromobenzene and Acetophenone
2. o-and p-Bromophenol and Salicylaldehdye
3. p-Bromophenol and Salicylic acid
4. o-Bromophenol and Benzoic acid.
X and Y are respectively:
1. Bromobenzene and Acetophenone
2. o-and p-Bromophenol and Salicylaldehdye
3. p-Bromophenol and Salicylic acid
4. o-Bromophenol and Benzoic acid.
Subtopic: Phenols: Preparation & Properties |
82%
Level 1: 80%+
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Match the reactions from Column-I with their respective products from Column-II and choose the correct option.
1. (A) → (i), (B) → (iii), (C) → (ii), (D) → (iv)
2. (A) → (ii), (B) → (iii), (C) → (iv), (D) → (i)
3. (A) → (iv), (B) → (i), (C) → (ii), (D) → (iii)
4. (A) → (iii), (B) → (iv), (C) → (i), (D) → (ii)
| Column-I (Reaction) | Column-II (Product) | ||
| (A) | Hydrolysis of benzene diazonium chloride | (i) | p-Cresol |
| (B) | Phenol + methyl chloride in the presence of anhy. AICI3 | (ii) | Salicylic acid |
| (C) | Reaction of sodium phenoxide with CO2 | (iii) | Picric acid |
| (D) | Phenol + Conc. HNO3 | (iv) | Phenol |
1. (A) → (i), (B) → (iii), (C) → (ii), (D) → (iv)
2. (A) → (ii), (B) → (iii), (C) → (iv), (D) → (i)
3. (A) → (iv), (B) → (i), (C) → (ii), (D) → (iii)
4. (A) → (iii), (B) → (iv), (C) → (i), (D) → (ii)
Subtopic: Phenols: Preparation & Properties |
88%
Level 1: 80%+
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Match the Column-I with Column-II and mark the appropriate choice.
1. (A) →(i), (B) → (iii), (C) →(ii), (D) →(iv)
2. (A) → (iii), (B) →(i), (C) →(ii), (D) → (iv)
3. (A) → (ii), (B)→ (iii), (C) → (iv), (D) → (i)
4. (A) → (iv), (B) →(i), (C) →(ii), (D) → (iii)
| Column-I | Column-II | ||
| (A) | Williamson's synthesis | (i) | \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{CH}_3 \mathrm{COCl}\) in the presence of pyridine |
| (B) | o-Nitrophenol | (ii) | \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{ONa}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}\) |
| (C) | p-Nitrophenol | (iii) | Intramolecular hydrogen bonding |
| (D) | Acetylation | (iv) | Intermolecular hydrogen bonding |
2. (A) → (iii), (B) →(i), (C) →(ii), (D) → (iv)
3. (A) → (ii), (B)→ (iii), (C) → (iv), (D) → (i)
4. (A) → (iv), (B) →(i), (C) →(ii), (D) → (iii)
Subtopic: Phenols: Preparation & Properties | Ethers: Preparation & Properties, Uses |
93%
Level 1: 80%+
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Phenol reacts with chloroform in the presence of sodium hydroxide to form salicylaldehyde.
This reaction is known as:
1. Kolbe's reaction
2. Reimer-Tiemann reaction
3. Stephan reaction
4. Etard reaction
This reaction is known as:
1. Kolbe's reaction
2. Reimer-Tiemann reaction
3. Stephan reaction
4. Etard reaction
Subtopic: Mechanism of Dehydration, Methanol & Ethanol |
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Match the following, choosing one item from Column X and the appropriate item from Column Y.
Codes:
| X | Y | ||
| (i) | Decarboxylation | (a) | Addition reaction |
| (ii) | Ozonolysis | (b) | Soda-lime |
| (iii) | Williamson's synthesis | (c) | Structure of alkene |
| (iv) | Dichloroethylene | (d) | Ether |
| Option | (i) | (ii) | (iii) | (iv) |
| 1. | (a) | (b) | (c) | (d) |
| 2. | (d) | (b) | (a) | (c) |
| 3. | (c) | (a) | (d) | (b) |
| 4. | (b) | (c) | (d) | (a) |
Subtopic: Ethers: Preparation & Properties, Uses |
85%
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In Williamson's synthesis, ethoxyethane is prepared by:
| 1. | passing ethanol over heated alumina |
| 2. | heating sodium ethoxide with ethyl bromide |
| 3. | treating ethyl alcohol with an excess of H2SO4 at 430-440 K |
| 4. | heating ethanol with dry Ag2O |
Subtopic: Ethers: Preparation & Properties, Uses |
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Isopropyl chloride is heated with A and forms 2-ethoxypropane. The compound (A) is:
1. C2H6
2. CH3OH
3. CH3NH2
4. CH3CH2ONa
1. C2H6
2. CH3OH
3. CH3NH2
4. CH3CH2ONa
Subtopic: Ethers: Preparation & Properties, Uses |
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Subtopic: Ethers: Preparation & Properties, Uses |
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