Select the correct option based on statements below:

Assertion (A): The α -hydrogen atom in carbonyl compounds is less acidic.
Reason (R): The anion formed after the loss of the α -hydrogen atom is resonance stabilized.
 
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:  Isomers & Reaction Mechanism |
 70%
Level 2: 60%+
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What is the name of the below mentioned reaction?
\(\small{\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{CH}_3 \mathrm{COCl} \stackrel{\text { Pyridine }}{\longrightarrow} \mathrm{CH}_3 \mathrm{COOC}_2 \mathrm{H}_5+\mathrm{HCl}}\)

1. Acetylation

2. Cannizzaro reaction

3. Cross aldol condensation

4. Decarboxylation

Subtopic:  Name Reaction |
 82%
Level 1: 80%+
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The reaction that does not give benzoic acid as the major product is:

1. 
2.
3.
4.
Subtopic:  Aldehydes & Ketones: Preparation & Properties | Carboxylic Acids: Preparation & Properties |
 80%
Level 1: 80%+
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Select the correct option based on statements below:

Assertion (A): Compounds containing —CHO group are easily oxidised to corresponding carboxylic acids.
Reason (R): Carboxylic acids can be reduced to alcohol by treatment with LiAlH4.
 
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:  Isomers & Reaction Mechanism |
 81%
Level 1: 80%+
Hints

Match the example in Column I with the name of the reaction in Column II.

Column l
(Example)
Column ll
(Reaction)
A 1. Friedel-Crafts
acylation
B 2. HVZ reaction
C 3. Aldol
condensation
D 4. Rosenmund
Reaction
 
A B C D
1. 2 3 4 1
2. 3 1 4 2
3. 3 4 1 2
4. 4 1 3 2
Subtopic:  Name Reaction |
 92%
Level 1: 80%+
Hints

Match the reactions given in Column-I with the suitable reagents given in Column-II. 

Column-l
(Reactions)
Column-ll
(Reagents)
A. Benzophenone → Diphenylmethane I. LiAlH4
B. Benzaldehyde → 1-Phenylethanol II. DlBAL-H
C. Cyclohexanone → Cyclohexanol III. Zn(Hg)/Conc.
HCl
D. Phenyl benzoate → Benzaldehyde  IV. CH3MgBr

Codes:

  A  B D
1.   II III IV I
2. III IV I II
3. I IV III II
4. IV III II I
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 79%
Level 2: 60%+
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Match the acids given in Column I with their correct IUPAC names given in Column II and mark the appropriate option:

Column l
(Acids)
Column ll
(IUPAC names)
A. Phthalic acid  1. Hexane-1,6-dioic acid 
B. Glutaric acid  2. Benzene-1,2-dicarboxylic acid
C. Succinic acid  3. Pentane-1,5-dioic acid 
D. Adipic acid  4. Butane-1,4-dioic acid 


Codes:

A B C D
1. 2 3 4 1
2. 3 1 4 2
3. 1 4 3 2
4. 4 3 2 1
Subtopic:  Carboxylic Acids: Preparation & Properties |
 80%
Level 1: 80%+
Hints

Match the common names given in Column I with the IUPAC names given in Column II.

Column l 
(Common names)
Column ll
(IUPAC names)
A. Cinnamaldehyde 1. Pentanal 
B. Acetophenone 2. Prop-2-enal
C. Valeraldehyde 3. 1-Phenylethanone
D. Acrolein 4. 3-Phenylprop-2-en-al

Codes:

A B C D
1. 2 3 4 1
2. 3 1 4 2
3. 1 4 3 2
4. 4 3 1 2
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 74%
Level 2: 60%+
Hints

What is the most suitable reagent for the below mentioned conversion?

\(\mathrm{CH_{3} — CH = CH — CH_{2} — \overset{\Large{O} \\~ ||}{C}—CH_{3} \rightarrow}\)
    
\(\mathrm{CH_{3} — CH = CH — CH_{2} — \overset{\Large{O} \\~ ||}{C}—OH}\)

1.  Tollens' reagent 

2.  Benzoyl peroxide

3.  \(\mathrm I_{2}\) and NaOH solution

4.  Sn and NaOH solution

Subtopic:  Name Reaction |
 73%
Level 2: 60%+
Hints

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The compound below is treated with a concentrated aqueous KOH solution. The products obtained are:

1.
2.
3.
4.
Subtopic:  Name Reaction |
 87%
Level 1: 80%+
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