Acetone reacts with iodine (I2) to form iodoform in the presence of

(a) CaCO3          (b) NaOH          (c) KH           (d) MgCO3

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Preparation & properties of Aldehydes and Ketones
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Which of the following compounds with molecular formula, C5H10 yields acetone on ozonolysis? 

(a) 2-methyl-2-butene

(b) 3-methyl-1-butene

(c) Cyclopentane

(d) 2-methyl-1-butene

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Preparation & properties of Aldehydes and Ketones
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Among acetic acid, phenol and n-hexanol which one of the following compound will react with NaHCO3 solution to give sodium salt and CO2?                                             

1. Acetic acid

2. n-hexanol

3. Acetic acid and phenol

4. Phenol

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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The reagent used for the separation of acetaldehyde from acetophenone is

1.  NaHSO3         

2.  C6H5NHNH2           

3.  NH2OH             

4.  NaOH and I2

 

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Preparation & properties of Aldehydes and Ketones
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Iodoform test is not given by

(a) 2-pentanone                 

(b) ethanol

(c) ethanal                         

(d) 3-pentanone

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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Products of the following reaction                                   

  CH3CC.CH2CH3 (ii) hydrolysis(i) O3 ... are

(a) CH3CHO + CH3CH2CHO

(b) CH3COOH + CH3COCH3

(c) CH3COOH + HOOC.CH2CH3

(d) CH3COOH + CO2

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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Which alkene on ozonolysis gives CH3CH2CHO and CH3COCH3?                                          

(a) CH3CH2CH=C<CH3CH3

(b) CH3CH2CH=CHCH2CH3

(c) CH3CH2CH=CHCH3

(d) CH3-C|=CHCH3           CH3

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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Which one of the following on oxidation gives a ketone?                       

(a) primary alcohol                     (b) secondary alcohol

(c) tertiary alcohol                      (d) All of these

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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Consider the following transformations

CH3COOH CaCO3AheatBNaOHI2C The molecular formula of C is                       

1. CH3-C||IOH-CH3

2. ICH2-COCH3

3. CHI3

4. CH3I

 

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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The product formed in aldol condensation is                                                                 

(a) a beta-hydroxy acid

(b) a beta-hydroxy aldehyde or a beta-hydroxy ketone

(c) an alpha-hydroxy aldehyde or ketone

(d) an alpha, beta unsaturated ester

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
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