Home
Class 12
CHEMISTRY
1-Propanol and 2- propanol can be distin...

1-Propanol and 2- propanol can be distinguished by:

A

a.Oxidation with alkaline `KMnO_(4)` followed by reaction with Fehiling's solution.

B

b.Oxidation with acidic dichromate followed by reaction with Fehling's solution

C

c.Oxidation by heating with copper followed by reaction with Fehling's solution.

D

d.Oxidation with concentrated `H_(2)SO_(4)` follwed by reaction with Fehling's solution.

Text Solution

AI Generated Solution

The correct Answer is:
To distinguish between 1-Propanol and 2-Propanol, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Compounds**: - 1-Propanol (CH3CH2CH2OH) is a primary alcohol. - 2-Propanol (CH3CHOHCH3) is a secondary alcohol. 2. **Choose the Oxidizing Method**: - We will use heating with copper (Cu) as the oxidizing agent at a temperature of 300 degrees Celsius. 3. **Oxidation of 1-Propanol**: - When 1-Propanol is heated with copper, it gets oxidized to form Propanal (CH3CH2CHO), which is an aldehyde. - The reaction can be summarized as: \[ \text{CH}_3\text{CH}_2\text{CH}_2\text{OH} \xrightarrow{\text{Cu, 300°C}} \text{CH}_3\text{CH}_2\text{CHO} \] 4. **Reaction with Fehling's Solution**: - The resulting Propanal can then be reacted with Fehling's solution. - Fehling's solution contains copper(II) ions, which are reduced to copper(I) oxide (Cu2O), forming a red precipitate. - The reaction is: \[ \text{CH}_3\text{CH}_2\text{CHO} + \text{Fehling's solution} \rightarrow \text{Cu}_2\text{O (red precipitate)} + \text{other products} \] 5. **Oxidation of 2-Propanol**: - When 2-Propanol is heated with copper, it gets oxidized to form Acetone (CH3COCH3), which is a ketone. - The reaction can be summarized as: \[ \text{CH}_3\text{CHOHCH}_3 \xrightarrow{\text{Cu, 300°C}} \text{CH}_3\text{COCH}_3 \] 6. **Reaction with Fehling's Solution**: - The resulting Acetone does not react with Fehling's solution, meaning no red precipitate is formed. - Therefore: \[ \text{CH}_3\text{COCH}_3 + \text{Fehling's solution} \rightarrow \text{no reaction} \] 7. **Conclusion**: - By comparing the results, we can distinguish between 1-Propanol and 2-Propanol: - 1-Propanol gives a red precipitate with Fehling's solution. - 2-Propanol does not give any reaction with Fehling's solution. ### Final Answer: 1-Propanol and 2-Propanol can be distinguished by oxidation with copper followed by reaction with Fehling's solution. 1-Propanol gives a red precipitate, while 2-Propanol does not.

To distinguish between 1-Propanol and 2-Propanol, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Compounds**: - 1-Propanol (CH3CH2CH2OH) is a primary alcohol. - 2-Propanol (CH3CHOHCH3) is a secondary alcohol. ...
Promotional Banner

Topper's Solved these Questions

  • REDUCTION AND OXIDATION REACTION OF ORGANIC COMPOUNDS

    CENGAGE CHEMISTRY ENGLISH|Exercise SUBJECTIVE TYPE|4 Videos
  • REDUCTION AND OXIDATION REACTION OF ORGANIC COMPOUNDS

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercise (Assertion And Reasoning)|10 Videos
  • QUALITATIVE INORGANIC SALT ANALYSIS

    CENGAGE CHEMISTRY ENGLISH|Exercise Viva Voce Questions And Part-C (Analysis Of Cations)|42 Videos
  • SOLID STATE

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 1.2 (Objective)|9 Videos

Similar Questions

Explore conceptually related problems

can be distinguish by

1-propanol and 2-propanol can be best distinguished by :

Methanol and ethanol can be distinguished by

Propyne and propene can be distinguished by :

Two isomeric Ketones, 3-pentanone and 2-pentanone can be distinguished by:

Propanal and Acetone can be distinguished by testing with

H_(2)S and SO_(2) can be distinguished by

CENGAGE CHEMISTRY ENGLISH-REDUCTION AND OXIDATION REACTION OF ORGANIC COMPOUNDS-Exercise Archives (Subjective)
  1. The appropriate reagent for the following transformation is

    Text Solution

    |

  2. Which one of the following will most readily be dehydrated in acidic c...

    Text Solution

    |

  3. 1-Propanol and 2- propanol can be distinguished by:

    Text Solution

    |

  4. Compound (X) with molecular formula C(3)H(8)O is treated with acidifie...

    Text Solution

    |

  5. PhC-=CMeoverset(Hg^(2+)+H^(o+))to(A). The compound (A) is:

    Text Solution

    |

  6. The products of acid hydrolysis of P and Q can be distinguished by

    Text Solution

    |

  7. How will you convert butan -2-one to propanoic acid ?

    Text Solution

    |

  8. Which of the following compound will give a yellow precipitate with io...

    Text Solution

    |

  9. Under Wolff-Kishner reduction conditions, the conversion which may be ...

    Text Solution

    |

  10. Fehling's solution 'A' consists of an aqueous solution of copper sulph...

    Text Solution

    |

  11. The yield of ketone is oxidised is more than the yield of aldeyde whe...

    Text Solution

    |

  12. Statement-1: Acetic acid does not undergo haloform test. and State...

    Text Solution

    |

  13. Give a chemical test to distinguish between methanol and ethanol.

    Text Solution

    |

  14. Answer the following with suitable equation wherever necessary : Sug...

    Text Solution

    |

  15. A ketone [A] which undergoes haloform reactions gives compound [B] on ...

    Text Solution

    |

  16. Give reasons: iodoform is obtained by the reaction of acetone with h...

    Text Solution

    |

  17. When t-butanol and n-butanol are separately treated with a few drops o...

    Text Solution

    |

  18. A compund X(C8H10O) upon treatment with alkaline solution of iodine gi...

    Text Solution

    |

  19. Identify (A), (B), and (C ) and give their strucyures.

    Text Solution

    |

  20. An alkene (A) C(16)H(16) on ozonolysis gives only one product (B) (C(8...

    Text Solution

    |