Identify the compound C in the following sequence :

(CH3)2CHCH2CNHCl, H2Ocompound A 2. H2O1. LiAlH4compound B CH2Cl2PCCcompound C 

(a)                    O                   ||(CH3)2CHCCH3

                                 
(b)                           O                           ||(CH3)2CHCH2COH

(c)                           O                           ||(CH3)2CHCH2CH                 

(d)                   O                   ||(CH3)2CHC CH2OH

  • 1
  • 2
  • 3
  • 4

What is compound Z?

CH3CH2CH2BrNaCNXheatH3O+YH+CH3CH2OHZ

(a)                    O                   ||CH3CH-CHCOH           

(b) CH3CH2CH2CH=NOCH2CH3

(c) CH3CH2CH2CH(OCH2CH3)2         

(d)               O             ||  CH3CH2COCH2CH3

  • 4
  • 1
  • 2
  • 3

Identify (A).

(a)      (b)     (c)      (d) 

  • 1
  • 2
  • 3
  • 4

(i)H+(i)KBrO, (X) (Y)

Hence the product (Y) in the above sequence of reactions, is :

(a)  (b)   (c)   (d) 

  • 1
  • 2
  • 3
  • 4

The action of bromine water (excess) on salicylic acid results in the formation of:-

  •  

  •  

  •  

  •  

An organic compound having the molecular formula C8H10O on being heated with I2 and dilute NaOH gives a yellow precipitate. The expected compound is:

  • () C6H5CH2CH2OH

  • () 

  • () 

  • () 

The Birch reduction of benzoic acid gives:-
(a)  
(b)  
(c)  
(d) 

 

 


  • 1
  • 2
  • 3
  • 4

ph-CHO  +   2 H2SO4 major product of this reaction is:

  • () ph3CH

  • ()        OH        |Ph-C-Ph         |         Ph

  • () 

  • () ph2CH2

(2) H3O(1) KMnO4, HO-, 

The labelled carbon goes with:

1. Ph-C14O2H                 2. C14O2          3. Ph-C14H2-CO2H            4. C14H4

  • 1
  • 2
  • 3
  • 4

Which of the following acid gives positive Tollen's reagent test.

  •  (CH2)2<CO2HCO2H           

  •  CH2<CO2HCO2H           

  •  C|O2HCO2H

  • HCO2H

Acetaldehyde and benzaldehyde can be differentiated by:

1. Fehling test

  • 4. Both and (2)

  • 2. Iodoform test

  • 3. Tollen's reagent

  • 4

PCl5 reacts with propanone, to give:

  • gem dichloride

  • vic dichloride

  • propanal

  • propane chloride

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

  •  Al2O3

  •  CuO

  •  MoO

  •  Cu

Formaldehyde is not used in:

 

  • adhesives                 

  • bakelite

  • tooth powders           

  • explosives

Ketones can be prepared by:

  • Rosenmund's reduction

  • Stephen's reduction

  • both (1) and (2)

  • none of the above

Cyclohexanone is subjected to reduction by NaBH4. The product formed is:

 

  • cyclohexane             

  • cyclohexanal

  • cyclohexadiene         

  •  Cyclohexanol

Schiff's reagent is:

  • magenta solution decolourised with sulphurous acid

  •  magenta solution decolourised with chlorine

  • ammoinacal cobalt chloride solution

  • ammoinacal manganese sulphate solution

Which of the following reaction is a condensation reaction?

  • HCHOPara-formaldehyde

  •  CH3CHOParaldehyde

  •  CH3COCH3Mesityl oxide

  •  CH2=CH2Polyethylene

Which of the following is correct for carbonyl compounds?

  •               

  •  

  •                 

  •  

Compound having molecular formula C3H6O may be:

  • cyclic ether

  • carbonyl compound

  • unsaturatd ether or unsaturatd alcohol

  • all of the above

Which of the following would undergo aldol condensation?

  •  CCl3CHO               

  •              CH3            |CH3CCHO            |          CH3

  •  CH3CH2CHO          

  • HCHO

Dry distillation of barium salt of Hexane-1,2-dicarboxylic acid gives :

  •                     

  •  

  •                        

  •  

Paraldehyde is:

  • a trimer of formaldehyde

  •  a trimer of acetaldehyde

  • a hexamer of formaldehyde

  • a hexamer of acetaldehyde

Paraldehyde is used as a:

  • saporific                   

  • poison

  • polymer                   

  • dye

A typical compound undergoes Cannizzaro's reaction and aldol condensation. It is:

  •  (CH3)2CHCHO       

  • HCHO

  •  C6H5CHO             

  •  CH3CHO

Formaldehyde when treated with KOH gives methanol and potassium formate. The reaction is known as:

  • Perkin's reaction

  • Claisen's reaction

  • Cannizzaro's reaction 

  • Knoevenagel's reaction

In the reaction, P is: 

 

 

  • CH3COCHO

  • CH3COOCH3

  • CH3COCH2OH

  • none of these

Acetaldehyde reacts with PCl5, to give:

  • ethyl chloride

  • ethylene chloride

  • ethylidene dichloride

  • trichloroacetaldehyde

The reaction  is an example of:

  • Wolf rearrangement

  • Favorskii rearrangement

  • Steven's rearrangement

  • Wagner-Meerwin rearrangement

Stephen's reaction is reduction of:

  • alkyl cyanide with LiAlH4

  • alkyl cyanide with SnCl2 and HCl

  • alkyl isocyanide with Na and alcohol

  • acyl halide in the presence of Pd/BaSO4

0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Chemistry Quiz Questions and Answers