Q 1 :    

The final product A formed in the following multistep reaction sequence is                         [2024]

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(4)

 



Q 2 :    

Identify the reagents used for the following conversion                         [2024]

  • A=LiAlH4, B=NaOH(aq), C=NH2-NH2/KOH, ethylene glycol

     

  • A=DIBAL-H, B=NaOH(aq), C=NH2-NH2/KOH, ethylene glycol

     

  • A=DIBAL-H, B=NaOH(alc), C=Zn/HCl

     

  • A=LiAlH4, B=NaOH(alc), C=Zn/HCl

     

(3)

DIBAL-H is used for selective reduction of esters and nitriles to aldehydes at low temperature (around 78°C).

 



Q 3 :    

Match List – I with List – II.                                [2024]

Choose the correct answer from the options given below:

  • (A)−(III), (B)−(IV), (C)−(I), (D)−(II)

     

  • (A)−(IV), (B)−(II), (C)−(I), (D)−(III)

     

  • (A)−(IV), (B)−(II), (C)−(III), (D)−(I)

     

  • (A)−(III), (B)−(IV), (C)−(II), (D)−(I)

     

(2)

 



Q 4 :    

Identify the product in the following reaction:                        [2024]

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(1)

This is Clemmensen reduction reaction.

 



Q 5 :    

Identify ‘A’ in the following reaction:                               [2024]

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(3)

This is Wolff-Kishner reduction reaction.

 



Q 6 :    

Identify A and B in the given chemical reaction sequence:                [2024]

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(3)

 



Q 7 :    

Consider the given reaction, identify the major product P.                    [2024]

  • CH3CH2CH2OH 

     

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(2)

Note: Actual product is anion of (P) as hydrolysis is done in basic medium.



Q 8 :    

What is the structure of C?                             [2024]

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(2)

 



Q 9 :    

Which of the following compounds can give positive iodoform test when treated with aqueous KOH solution followed by potassium hypoiodite?         [2024]

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  • CH3 CH2 CH2 CHO 

     

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(1)