Acetaldehyde undergoes self condensation in presence of aluminium ethoxide to give ethyl acetate. This reaction is called:

(1) Perkin reaction

(2) Tischenko's reaction

(3) Cannizzaro's reaction

(4) Aldol condensation

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Oppenauer oxidation is the reverse process of:

(1) Wolff-Kishner's reduction

(2) Rosenmund's reduction

(3) Clemmensen's reduction

(4) Meerwein-Ponndorf Verley reduction

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Semicarbazide is:

(1) NH2CONH2

(2) NH2-NH2

(3) NH2CONHNH2

(4) None of these

 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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An aldehyde which undergoes Cannizzaro's reaction and reduces Schiff's reagent but does not reduce Fehling's solution is:

(1) CH3CHO

(2) HCHO

(3) C6H5CHO

(4) salicylaldehyde

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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b-hydroxy butyraldehyde is an example of: 

(1) aldol

(2) diol

(3) hemiacetal

(4) acetal

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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A ketone reacted with C2H5MgBr reagent followed by hydrolysis gave a product which on dehydration gives an alken. The alkene on ozonolysis gave diethyl ketone and acetaldehyde. The ketone is:

(1) dimethyl ketone

(2) ethyl methyl ketone

(3) diethyl ketone

(4) ethyl propyl ketone

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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The reaction  produces:

1. 

2. 

3. 

4. 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Treatement of propionaldehyde with dil. NaOH gives:

(1) CH3CH2COOCH2CH2CH3

(2) CH3CH2CHOHCH2CH2CHO

(3) CH3CH2CHOHCH(CH3)CHO

(4) CH3CH2COCH2CH2CHO

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Which of the following will react with water ?

(1) CHCl3

(2) CCl3CHO

(3) CCl4

(4) CH2Cl.CH2Cl

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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Among the given compounds, the most susceptible to nucleophile attack at the carbonyl group is:

(1) MeCOCl

(2) MeCHO

(3) MeCOOMe

(4) MeCOOCOMe

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
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