12 Chemistry Unit-19 Carboxylic Acids

20 Questions | Total Attempts: 557

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12 Chemistry  Unit-19  Carboxylic Acids

Prepared by: G. KUPPUSWAMY, P. G. Asst. , Pachaiyapp's HSS, Kanchipuram.   ; & www. Padasalai. Net   ; &nbs p;


Questions and Answers
  • 1. 
    P{margin-bottom:0.08in;} Which of the following is least acidic a) C2H5OH     b) CH3COOH  c) C6H5OH     d) ClCH2COOH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 2. 
    P { margin-bottom: 0.08in; } Weakest acid among the following is a) Acetic acid   b)  Phenol  c) Water  d) Acetylene
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 3. 
    P { margin-bottom: 0.08in; } Ester formation involves the reaction of a) an aldehyde and a ketone b) An alcohol with RMgX c) Two molecules of an acid with dehydrating agent d) An acylhalide with an alcohol
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 4. 
    P { margin-bottom: 0.08in; } Heating a mixture of sodium acetate and soda lime gives a) methane  b) ethane  c) acetic acid  d) benzene
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 5. 
    P { margin-bottom: 0.08in; } The acid which reduces Tollen's reagent is a) acetic acid            b) benzoic acid c) formic acid           d) oxalic acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 6. 
    P { margin-bottom: 0.08in; }                                                                                                CH3                                                                                                 │  The IUPAC name of CH3-CH2-CH-COOH is a) α-methyl butric acid        b) 3-methy butanoic acid c) 2-methyl butanoic acid       d) Iso pentanoic acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 7. 
    P { margin-bottom: 0.08in; } P { margin-bottom: 0.08in; } The Isomerism exhibited by CH3-CH2-COOH and CH3-COOCH3 is a) metamerism     b) position     c) chain     d) functional
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 8. 
    P { margin-bottom: 0.08in; } The acid that cannot be prepared by Grignard reagent a) acetic acid                    b) formic acid c) butyric acid                  d) benzoic acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 9. 
    P{margin-bottom:0.08in;} Which order of arrangement is correct in terms of the strength of the acid P{margin-bottom:0.08in;} P { margin-bottom: 0.08in; } a) CH3-CH2-COOH > CH3COOH < HCOOH < ClCH2-COOH b) ClCH2-COOH > HCOOH < CH3COOH < CH3-CH2-COOH c) CH3-CH2-COOH < CH3COOH < HCOOH < ClCH2-COOH d) HCOOH > CH3-CH2-COOH < CH3COOH > ClCH2-COOH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 10. 
    P{margin-bottom:0.08in;} P { margin-bottom: 0.08in; } The compound which undergoes intramolecular dehydration with P2O5 is a) acetic acid          b) formic acid c) propionic acid    d) buryric acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 11. 
    P{margin-bottom:0.08in;}                         HC=O   ? The product is                                  ⁄                        HO a) CO + H2O      b) HCOOH c) H2 + CO2       d) HCHO + O2  
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 12. 
    P { margin-bottom: 0.08in; } When chlorine is passed through acetic acid in presence of red P, it forms. a) acetyl chloride            b) Trichloro acetaldehyde c) Trichloro acetic acid   d) Methyl chloride
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 13. 
    P { margin-bottom: 0.08in; } Which of the following compounds will react with NaHCO3 solution to give sodium salt and CO2 a) acetic acid             b) n-hexanol c) phenol                    d) both (a) and (b)
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 14. 
    P { margin-bottom: 0.08in; } when propanoic acid is treated with aqueous sodium – bicarbonate ,CO2 is liberated. The “C” of CO2 comes from a) methyl group             b) carboxylic acid group b) methylene group       d) bicarbonate
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 15. 
    P { margin-bottom: 0.08in; } Carboxylic acids are more acidic than phenol and alcohol because of a) inte molecular hydrogen bonding b) formation of dimers c) highly acidic hydrogen d) greater resonance stabilisation of     their conjugate base
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 16. 
    P { margin-bottom: 0.08in; } Among the following the strongest acid is a) ClCH2-COOH              b) Cl3C-COOH c) CH3CHOHCOOH        d) Cl2CH-COOH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 17. 
    P { margin-bottom: 0.08in; } Which of the following compound is optically active ? a) CH3CH2COOH b) HOOC-CH2-COOH c) CH3CH(OH)CHO d) Cl2CHCOOH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 18. 
    P{margin-bottom:0.08in;} CH3CH(OH)COOH    ? The product is a) CH3COCOOH          b) CH3CH2COOH c) CH3CHOHCHO      d) HOOC-CH2-COOH
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 19. 
    P { margin-bottom: 0.08in; } The compound found in some stony deposit in kidneys is a) potassium oxalate          b) oxalic acid c) potassium succinate      d) calcium oxalate
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 20. 
    P { margin-bottom: 0.08in; } Ethylene cyanide on hydrolysis using acid gives a) oxalic acid             b) succinic acid c) adipic acid            d) propionic acid
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

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