When vapours of acetic acid are passed over.....at 300°C we get acetone.

1. Al2O3

2. CuO

3. MoO

4. Cu

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 52%
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Formaldehyde is not used in:

(1) adhesives                 

(2) bakelite

(3) tooth powders           

(4) explosives

 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 56%
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Ketones can be prepared by:

(1) Rosenmund's reduction

(2) Stephen's reduction

(3) both (1) and (2)

(4) none of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 57%
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Cyclohexanone is subjected to reduction by NaBH4. The product formed is:

(1) cyclohexane             

(2) cyclohexanal

(3) cyclohexadiene         

(4) Cyclohexanol

 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 70%
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Schiff's reagent is:

1. Magenta solution decolorized with sulphurous acid

2. Magenta solution decolorized with chlorine

3. Ammoinacal cobalt chloride solution

4. Ammoinacal manganese sulphate solution

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 56%
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Which of the following reaction is a condensation reaction?

(1) HCHOPara-formaldehyde

(2) CH3CHOParaldehyde

(3) CH3COCH3Mesityl oxide

(4) CH2=CH2Polyethylene

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 53%
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Which of the following is correct for carbonyl compounds?

(1)              

(2) 

(3)                

(4) 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 52%
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Compound having molecular formula C3H6O may be:

(1) cyclic ether

(2) carbonyl compound

(3) unsaturatd ether or unsaturatd alcohol

(4) all of the above

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 79%
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Which of the following would undergo aldol condensation?

(1) CCl3CHO               

(2)             CH3
            |
CH3CCHO
            |
          CH3

(3) CH3CH2CHO          

(4) HCHO

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 85%
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Dry distillation of barium salt of Hexane-1,2-dicarboxylic acid gives :

(1)                    

(2) 

(3)                       

(4) 

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 75%
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