The enolate ion that reacts with 3-buten-2-one to form (Y) is :

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

  • ()          

  • ()          
  • ()          
  • () 

Product (B) in the above reaction is :

base (A), (A) + HO-(dil)(B)

  • ()                        

  • () 

  • ()                                      

  • () 

Which of the following compounds will not undergo Cannizaro reaction, when treated with 50% aqueous alkali?

  • ()             O        ||Ph-C-H 

  • ()      
  • () Me3C-CHO         
  • () Ph-CH2-CHO

H+(A) ZnO3(B) HO-(C) ; Product (C) is :

      (72%)

  • ()                              

  • () 

  • ()                          

  • () 

NaOHProduct; Product is :

  • ()                            

  • () 

  • ()                    

  • () 

Which of the following does not undergo polymerization?

  • CH3CHO

  • HCHO

  • CH3COCH3

  • None of these

Formaldehyde can be distinguished from acetaldehyde by:

  • Fehling's solution

  • Schiff's reagent

  • Ammonia

  • Ammoniacal AgNO3

(2) H+, H2O(1) Et-Li(3-eq.) (P)     ; Product (P) of the reaction is :

                                               (65% yield)

  • ()    

  • ()  
  • ()  
  • () 

 H3O (A) , Product (A) obtained is :

  •  

  •  

  •  

  •  

Which of the following acid on heating gives geometrical isomers as a product ?

  • ()                OH           |CH3-CH-CO2H                 

  • () 

  • ()     CH3-CH-CH2-CO2H          |         OH   

  • () All of these

MeOHAPCl3BMeNH2C ; Product (C) of the reaction is :

(a)                        (b) 

(c)                              (d) 

  • 1
  • 2
  • 3
  • 4

LiAlH4APCCBNH2-NH2C , Product (C) is :

(a)   (b)        (c)      (d) 

  • 1
  • 2
  • 3
  • 4

-CO2AHClBaq KOHC. Product (C) is :

(a)                    O               ||CH3-CH2C-H       (b) 

(c)                        (d) 

  • 1
  • 2
  • 3
  • 4

 +R-CH2-NH2THFK2CO3 (A) 

  •                                                       (71%)

  • In above reaction identify major product (A) of the reaction:

  • (a)     (b) 

  • (c)        (d) 

KOH A  H3O+ B  PCl5 C  LiAlH4  D  H+/(X)

Product (X) is :

(a)    (b)      (c)        (d) 

  • 1
  • 2
  • 3
  • 4

A key step in the hydrolysis of acetamide in aqueous acid proceeds by nucleophilic addition of :

  •  H3O+ to          O      ||CH3C NH2                       

  •   H2O to        +OH      || CH3C NH2

  •  H3O+ to      +OH      ||CH3CNH2                        

  •  HO- to    +OH      ||CH3CNH2

In Tischenko's reaction an aldehyde is heated with catalyst:

  • NaOH

  • Al(OC2H5)3

  • Al2O3

  • Mg/Hg

Formalin is:

  • formaldehyde

  • formaldehyde+methanol

  • formaldehyde+methanol+water

  • formaldehyde+water

Doctors detect diabetes disease by testing the presence of glucose in urine with:

  • Nessler's reagent

  • Fehling's solution

  • Fenton's reagent

  • Silver nitrate solution

Acetals are:

  • Aldehyde

  • Diethers

  • Ketones

  • Hydroxy aldehyde

All but one of the following compounds react with aniline to give acetanilide. Which one does not?

 

             O          ||(a) CH3C-Cl                        (b) 

(c)       O      ||CH3C-H                            (d) 

  • 1
  • 2
  • 3
  • 4

H2OLiAlH4(excess) Product of the reaction is :

1.                               

3.                 

  • 1
  • 2. 

  • 3
  • 4. 

 CH2OCOR |CHOCOR2 |CH2OCOR33NaOH  (A) + Salt of fatty acid (soap)

Product (A) of the reaction is :

(a) Ethylene glycol                                    (b) Glycerol

(c) Glyceryltrinitrate (explosive)                 (d) Cumene hydrogen peroxide

  • 1
  • 2
  • 3
  • 4

(A) ; Product (A) of the reaction is :

  •         

  •  

  •                 

  •  

         O        ||PhCCl : Identify the product (A).

(a)        (b)        

 (c)            (d)  

  • 1
  • 2
  • 3
  • 4

Which is the major product of the following reaction?


  •  

  •  
  •  

  •  

PCl5(A) LiAlH4(B) PCC(C) HO-(D)

  • () 

  • &nsp; (b)  
  • ()  
  • () 

Which of the following compounds will undergo decarboxylation on heating?

        

  • (d) 1 nd 4

  • (a) 2 and 3&nsp;          

  • () 3 only                   

  • (b) 3 an 4                 

dry HCl gas (major product);3eq. EtOH (A); Product A is :

(a)                      (b) 

(c)                       (d) 

  • 1
  • 2
  • 3
  • 4

The correct order of reactivity of >CO group in given compounds is:

  •  

  •  

  •  

  •  

0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Chemistry Quiz Questions and Answers