Compounds A and C in the following reaction are:
\(\mathrm{\small{{CH}_3 {CHO} \xrightarrow[{(ii) ~H_{2}O}]{(i) ~CH_{3}MgBr}({A}) \stackrel{{H}_2 {SO}_4}{\longrightarrow}({B}) \xrightarrow[]{Hydroboration \ oxidation}(C)}}\)

1. Identical                               

2. Positional isomers

3. Functional isomers       

4. Optical isomers

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 70%
Level 2: 60%+
Hints

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

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

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

Which of the following compounds will give butanone on oxidation with alkaline KMnO4 solution?

1. Butan-1-o1                 
2. Butan-2-ol
3. Both (a) and (b)             
4. None of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 78%
Level 2: 60%+
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Carbonyl compound is treated with--- in Clemmensen reduction .

1.  Zinc amalgam + HCl

2.  Sodium amalgam + HCl

3. Zinc amalgam + nitric acid

4.  Sodium amalgam + HNO3

Subtopic:  Name Reaction |
 92%
Level 1: 80%+
Hints

Which of the following compounds do not undergo aldol condensation?

(a) (b)
(c) (d)

Options are as follows:

1. a, b

2. b, d

3. b, c

4. c, d

Subtopic:  Name Reaction |
 86%
Level 1: 80%+
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The product (P) and (Q) of the given reaction are:
 

a.  Phenol b. Sodium phenoxide
c.  Sodium benzoate d. Benzophenone


1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
Level 3: 35%-60%
Hints

Identify the conversions that are possible with Clemmensen reduction:

a. Benzaldehyde to benzyl alcohol.

b. Cyclohexanone to cyclohexane.

c. Benzoyl chloride to benzaldehyde.

d. Benzophenone to diphenylmethane.

1. a and b 2. b and c
3. c and d 4. b and d
Subtopic:  Name Reaction |
 78%
Level 2: 60%+
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Links

Which of the following reactions increase the number of carbon atoms in the carbon chain?
a. Grignard reaction
b. Cannizzaro’s reaction
c. Aldol condensation
d. HVZ reaction

Choose the correct option:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

Subtopic:  Isomers & Reaction Mechanism | Name Reaction |
 76%
Level 2: 60%+
Hints

Benzophenone can be obtained by:
a.  Benzoyl chloride + Benzene 
b.  Benzoyl chloride + Diphenyl cadmium
c.  Benzoyl chloride + Phenyl magnesium chloride
d.  Benzene + Carbon monoxide 

Choose the correct option

1. (a, b) 2. (b, c)
3. (c, d) 4. (a, d)
Subtopic:  Aldehydes & Ketones: Preparation & Properties |
Level 3: 35%-60%
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%+
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