Q 1 :    

Select the incorrect reaction among the following.                [2024]

  • CH3COClΔH2OCH3COOH

     

  • [IMAGE 237]

     

  • CH3CH2OH(ii) H3O+(i) KMnO4/OH-CH3COOH

     

  • CH3CH2CH2OHCrO3-H2SO4CH3CH2COOH

     

(2)

The amides on reduction with lithium aluminium hydride yield amines.

[IMAGE 238]

 



Q 2 :    

Match List I with List II.                                  [2024]

[IMAGE 239]

Choose the correct answer from the options given below:

  • A-IV, B-I, C-III, D-II

     

  • A-III, B-I, C-II, D-IV

     

  • A-IV, B-I, C-II, D-III

     

  • A-I, B-IV, C-II, D-III

     

(3)

[IMAGE 240]

 



Q 3 :    

Reagents which can be used to convert alcohols to carboxylic acids, are:

(A)  CrO3-H2SO4

(B)  K2Cr2O7+H2SO4

(C)  KMnO4+KOH/H3O+

(D)  Cu, 573 K

(E)  CrO3,(CH3CO)2O

Choose the most appropriate answer from the options given below:                   [2023]

  • (B), (C) and (D) only

     

  • (B), (D) and (E) only

     

  • (A), (B) and (C) only

     

  • (A), (B) and (E) only

     

(3)

[IMAGE 241]

 



Q 4 :    

Complete the following reaction:

[IMAGE 242]

[C] is ___________________.                [2023]

  • [IMAGE 243]

     

  • [IMAGE 244]

     

  • [IMAGE 245]

     

  • [IMAGE 246]

     

(2)

[IMAGE 247]

 



Q 5 :    

RMgX+CO2etherdryYH3O+RCOOH

What is Y in the above reaction?                             [2022]

  • RCOO-Mg+X

     

  • R3CO-Mg+X

     

  • RCOO-X+

     

  • (RCOO)2Mg

     

(1)

[IMAGE 248]

 



Q 6 :    

The reaction that does not give benzoic acid as the major product is                [2019]

  • [IMAGE 249]

     

  • [IMAGE 250]

     

  • [IMAGE 251]

     

  • [IMAGE 252]

     

(3)

PCC (Pyridinium chlorochromate) prevents the further oxidation of aldehydes to carboxylic acids.

 



Q 7 :    

Which one of the following esters gets hydrolysed most easily under alkaline conditions?             [2015]

  • [IMAGE 253]

     

  • [IMAGE 254]

     

  • [IMAGE 255]

     

  • [IMAGE 256]

     

(4)

Electron withdrawing groups increase the reactivity towards nucleophilic substitution reaction and –NO2 is a strong electron withdrawing group.