In the given reaction, product A is:


   \(\text{1-Methylcyclohexanol}~ \mathrm{\xrightarrow[]{acid \ catalysed \ dehydration}} ~\text A\) 

1. 2-Methylcyclohexene
2. 1-Methylcyclohexanol
3. 1-Methylcyclohexane
4. 1-Methylcyclohexene

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 77%
Level 2: 60%+
Hints

Given below are two statements: 

Assertion (A): Ortho and para nitrophenols are more acidic than phenol.
Reason (R): Phenoxide ion formed by ortho and para nitrophenols are more stable than pehenoxide ion formed by phenol.

 

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.
Subtopic:  Electrophilic Substitution Reactions, Uses of Phenols |
 85%
Level 1: 80%+
Hints

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.

Subtopic:  Phenols: Preparation & Properties |
 76%
Level 2: 60%+
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In the given reaction, product A and the reaction name are respectively:

1. 2-Ethoxy-3-methylpentane; Williamson synthesis  reaction
2. 1-Ethoxy-3-methylpentane; Williamson synthesis  reaction
3. 2-Ethoxy-3-methylpentane; Nucleophilic addition reaction
4. 1-Ethoxy-3-methylpentane; Nucleophilic addition reaction
Subtopic:  Ethers: Preparation & Properties, Uses |
 81%
Level 1: 80%+
Hints

The appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene is:

1.
2.
3. Both 1 and 2 are appropriate set of reactants for the preparation of 1-methoxy-4-nitrobenzene
4. None of the above

Subtopic:  Ethers: Preparation & Properties, Uses |
 70%
Level 2: 60%+
Hints

In the given reaction, products are respectively:

\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_3+\mathrm{HBr} \rightarrow \mathrm{A}+\mathrm{B}\)

1.
2.  \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br} ; \mathrm{CH}_3 \mathrm{OH}\)
3.
4. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br} ; \mathrm{CH}_3 \mathrm{Br}\)
Subtopic:  Ethers: Preparation & Properties, Uses |
 80%
Level 1: 80%+
Hints

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Match the items in Column I with the items in Column II.
Column I Column II
a.  i. Tertiary alcohol
b. H2C=CH−CH2OH ii. Primary alcohol
c.

CH3−CH2−CH2−OH

iii. Secondary alcohol
1. a-ii; b-iii; c-i
2. a-ii; b-ii; c-i
3. a-iii; b-i; c-i
4. a-iii; b-ii; c-ii
Subtopic:  Alcohols: Preparation & Properties |
 86%
Level 1: 80%+
Hints

Which option correctly represents product A?
1. 2.
3. 4.
Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 77%
Level 2: 60%+
Hints

In the given reaction, product A is:
1. 2.
3. 4. None of the above.
Subtopic:  Alcohols: Preparation & Properties |
 79%
Level 2: 60%+
Hints

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In the given reaction, product A is: 

Butan-1-ol  \(\xrightarrow[]{acid \ catalysed \ dehydration}\)​ A


1. But-2-ene
2. 1-Butoxybutane
3. But-1-ene
4. None of the above
Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 62%
Level 2: 60%+
Hints