(I)  

(II) 

(III)  

The correct order of reactivity of I,II and III towards addition reactions is:

  • I>III>II                 

  • I>II>III             

  • III>II>I               

  • III>I>II

Which of the following reactants is suitable for the preparation of methane and ethane by using one-step only?

  •   H2C = CH2

  • CH3OH

  • CH3-Br

  • CH3-CH2-OH

 Br2/hv Monobromo derivatives

The number of possible monobromo products is (excluding stereoisomers):

  •   4     

  •   5 
  •   8
  •   10

On catalytic reduction by one mole  H2/Pt ,how many alkenes will give n-butane?

  • ()1
  • ()2
  • ()3
  • ()4

HCl; Major product of the reaction is:

  • () 

  • () 

  • () 

  • () 

  |                 CH2CO2 KCH2CO2 Kelectrolysis (A)(major) (Kolbe electrolysis method)

Product (A) of the reaction is :

  • CH3-CH3

  • CH2=CH2

  • CH3-CH=CH2

  • none of these

 cis-2-butene PeroxideHBrProduct of the reaction is :


 

  • Racemic

  • Diastereomer

  • Meso

  • E and Z isomer

Acetylene and HCHO reaction to the presence of copper acetylide catalyst to form

  • 2-Butyne-1,4-diol

  • But-2-yne-1,2-diol

  • But-1-yne-1,4-diol

  • None of these

Which of the following bromides is the major product of the reaction shown below, assuming that there are no carbocation rearrangement?
+HBr (1 Equivalent) C13H17Br

  •  

  •  

  •   

  •  

What is a likely product of the reaction shown?

  •  

  •  

  •  

  •  

Which of the following, when undergoing addition of HBr, will form ONLY a pair of diastereomers?

  • 1
  • 2
  • 3
  • 4

Which of the following is the best stereochemical representation when reaction between 1 -methylcyclohexene and NBS react in aqueous dimethyl sulfoxide?

  • () 

  • () 

  • () 

  • () None of these

CH3-CH||CH3CH3+H2C = CH22.50CHF(A);    (A) is:

(a) 

(b) 

(c) 

(d) CH3-CH|CH3-CH2-CH=CH2

  • 1
  • 2
  • 3
  • 4

Di-imide (N2H2) is used to reduce double bond of:

  •   -C|=O               

    (2) -CN             

    (3) -NO2           

    (4) -CH=CH-

  • 2
  • 3
  • 4


End product of the reaction is:-
(a)(b)

(c)      (d)

  • 1
  • 2
  • 3
  • 4


Product (A) is:-

  •   

  •  

  •   

  •  

Compound (A) is :

  •   

  •  

  •   

  •  

MMPP  Magnesium mono peroxy phthalate. Product (X) is:

  •    

  •  

  •   

  •  

Product (A) is:

 

  • Ph-CH2-Cl                     

  • Ph-CH2-Br

  • Ph-CH2-CCl3                 

  • Ph-CH2-CBrCl2

Which one of the following compounds gives acetone (CH3)2C=O as one of the products of

  •   

  •   

  •  

  •    

Trans-cyclohexane-1,2-diol can be obtained by the reaction of cyclohexane with:

  • KMnO4                                       

  • OsO4

  • peroxy formic acid/H3O+             

  • SeO2

(2) NaBH4, HO-(1) (CF2CO2)2Hg, CH3CH2OH (P)(100%); Product (P) is :

  •   

  •    

  •   

  •    

What is the major product expected form the following reaction?

(a) 

(b) 

(c) 

(d) 

  • 1
  • 2
  • 3
  • 4

Addition of OsO4 to cyclopentene generates:

  • Achiral product

  • Racemic product

  • Meso product

  • Optically active product

The major product of the following reaction is:

CH3-CH=CH2 + HBr (C6H5CO)2O2

  •   CH3-CH2-CH2-Br

  •   CH3CH(Br)-CH3

  •   BrCH2-CH=CH2

  •  

Which series of reactions will achieve the following transformation?

(a) Cl2/CCl4         Br2                           

(b)   HBr             Cl2/CCl4

(c) Cl2/CCl4         NBS/hv                     

(c)   NBS/hv        Cl2/CCl4

  • 1                          2   

  • 2
  • 3
  • 4

The principal organic product formed in the reaction given below is:-
CH2=CH(CH2)8COOH+HBr→...
                                  peroxide

  • CH3-CHBr(CH2)8COOH

  • CH2=CH(CH2)8COBr

  • CH2BrCH2(CH2)8COOH

  • CH2=CH(CH2)7CHBrCOOH

When 2-butyne is treated with H2 Pd-BaSO4, the product formed will be-

  • cis-2-Butene

  • trans-2-Butene

  • 1-Butene

  • 2-Hydroxy butane

The major product formed in the reaction is:

  

  •  

  •  
  •  
  •  


      (a)                                  (b)

the correct relation of rate of reaction towards reduction using (H2/Pt):

  •   a>b

  • a=b

  • b>a

  • Reduction is not possible

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