New ! Chemistry MCQ Practise Tests



Carbonyl Compounds 2 Mark Book Back Question Paper With Answer Key

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Chemistry

Time : 01:00:00 Hrs
Total Marks : 42

     2 Marks

    21 x 2 = 42
  1. How is propanoic acid is prepared starting from
    (a) an alcohol
    (b) an alkylhalide
    (c) an alkene

  2. Identify X and Y.
    \({ CH }_{ 3 }CO{ CH }_{ 2 }{ CH }_{ 2 }COO{ C }_{ 2 }{ H }_{ 5 }\overset { { CH }_{ 3 }MgBr }{ \longrightarrow } X\overset { { H }_{ 3 }{ O }^{ + } }{ \longrightarrow } Y\)

  3. How will you convert benzaldehyde into the following compounds?
    (i) benzophenone
    (ii) benzoic acid
    (iii) α-hydroxyphenylaceticacid.

  4. What is the action of HCN on
    (i) propanone
    (ii) 2,4-dichlorobenzaldehyde
    iii) ethanal

  5. A carbonyl compound A having molecular formula C5H10O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.

  6. How will you prepare
    i. Acetic anhydride from acetic acid
    ii. Ethylacetate from methylacetate
    iii. Acetamide from methylcyanide
    iv. Lactic acid from ethanal
    v. Acetophenone from acetylchloride
    vi. Ethane from sodium acetate
    vii. Benzoic acid from toluene
    viii. Malachitegreen from benzaldehyde
    ix. Cinnamic acid from benzaldehyde
    x. Acetaldehyde from ethyne

  7. How is propanoic acid is prepared starting from
    (b) an alkylhalide

  8. How is propanoic acid is prepared starting from
    (c) an alkene

  9. How will you convert benzaldehyde into the following compounds?
    (ii) benzoic acid

  10. How will you convert benzaldehyde into the following compounds?
    (iii) α - hydroxyphenylaceticacid.

  11. What is the action of HCN on
    (ii) 2,4-dichlorobenzaldehyde.

  12. What is the action of HCN on
    (iii) ethanal

  13. How will you prepare 
    Ethylacetate from methylacetate

  14. How will you prepare
    iii. Acetamide from methylcyanide

  15. How will you prepare
    Lactic acid from ethanal

  16. How will you prepare
    v. Acetophenone from acetylchloride

  17. How will you prepare
    vi. Ethane from sodium acetate

  18. How will you prepare
    vii. Benzoic acid from toluene

  19. How will you prepare Malachitegreen from benzaldehyde

  20. How will you prepare
    Cinnamic acid from benzaldehyde

  21. How will you prepare
    x. Acetaldehyde from ethyne

*****************************************

Reviews & Comments about 12th Standard Chemistry English Medium - Carbonyl Compounds 2 Mark Book Back Question Paper and Answer Key 2022 - 2023

Write your Comment