The below reaction is an example of

\(CH_{3}CH_{2}OH \ + \ CH_{3}COCl \xrightarrow[]{\textbf{Pyridine}} \)
\( CH_{3}COOC_{2}H_{5} \ + \ HCl\)

1. Acetylation

2. Benzoylation

3. Cross aldol condensation

4. Cross Cannizzaro reaction

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 80%
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What is the correct sequence of reagents used for the preparation of m-Nitrobenzoic acid from benzene?

 

(a) Mg/ Dry ether
(b) Br2 / FeBr3
(c) COH3O+
(d) HNO3 + H2SO4
 
1. (a) (b) (c) (d)
2. (b) (a) (c) (d)
3. (c) (b) (a) (d)
4. (d) (b) (a) (c)
Subtopic:  Name Reaction |
 57%
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The correct sequence of reagents used to yield p-Nitrobenzaldehyde from benzene is:

(a) CH3Cl /Anhyd. AlCl3
(b) HNO3 /H2SO
(c) CS2 / CrO2Cl2
(d) H3O+
 
1. (a) (b) (c) (d)
2. (c) (b) (a) (d)
3. (b) (a) (c) (d)
4. (a) (b) (d) (c)

Subtopic:  Name Reaction |
 67%
From NCERT
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Which chemical test is used to distinguish between benzoic acid and ethyl benzoate?

1. Tollens' test

2. Fehling’s test

3. Iodoform test

4. Sodium bicarbonate test.

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 64%
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The products X and Y in the below sequence of reactions are:
 
X Y
1.  CrO2Cl2/CCl4 CH3OH / H+
2.   KMnO4 CH3OH / H+
3. CrO2Cl2/CCl4 CH3CO2O
4. KMnO4 CH3CO2O
Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 67%
From NCERT
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What type of reaction is demonstrated by the process involving a carboxylic acid, an alcohol, and an acid that results in the formation of esters?

1. Reversible slow process 2. Irreversible fast process
3. Cyclic process 4. Adiabatic process
Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
 76%
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There is only one –NH2 group involved in semicarbazone formation out of two –NH2 group. It is due to:

1. Resonance  of one type of –NH2 group

2. Inductive effect of one type of –NH2 group

3. Hyperconjugation of one type of –NH2 group

4. Reverse hyperconjugation of one type of -NH2 group

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 68%
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Cyclohexanone forms cyanohydrin in a good yield, but 2,2,6-trimethylcyclohexanone does not. It is due to:

1. Low electrophilicity in 2,2,6-trimethylcyclohexanone

2. Less steric crowd in  2,2,6-trimethylcyclohexanone

3. More steric crowd in  2,2,6-trimethylcyclohexanone

4. High electrophilicity in 2,2,6-trimethylcyclohexanone

Subtopic:  Name Reaction |
 76%
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Propanal and butanal can produce four different aldol condensation products. The possible structures are:

1.
2.
3. Both (1) and (2)
4. None of these
Subtopic:  Name Reaction |
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The compounds that undergoes the Cannizzaro reaction are: 

(i) Methanal

(ii) 2-Methylpentanal

(iii) Benzaldehyde

(iv) Benzophenone

1. (i)

2. (ii)

3. (i), (iii) 

4. (i), (ii), (iii) 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 72%
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