Home
Class 12
CHEMISTRY
A hydrocarbon (A) is obtained when 1,2-d...

A hydrocarbon (A) is obtained when 1,2-dibromoethane reacts with alcoholic KOH. (A) decolourises alkaline `KMnO_4` solution . (A) contains acidic hydrogen . Identify (A) with reasons.

Text Solution

Verified by Experts

`underset(underset(Br)(|))(CH_(2)) - underset(underset(Br)(|))(CH_(2)) underset(KOH)overset("Alcoholic")rarr underset("Acetylene")(HC -= CH) underset(KMnO_(4))overset("Alkaline")rarr underset(underset(COOK)(|))(COOK)`
Promotional Banner

Topper's Solved these Questions

  • HYDROCARBONS

    CHHAYA PUBLICATION|Exercise SOLVED NCERT EXERCISE|43 Videos

  • HYDROCARBONS

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|35 Videos

  • HYDROCARBONS

    CHHAYA PUBLICATION|Exercise (QUESTION-ANSWER ZONE FOR BOARD EXAMINATION (Long answer type)|54 Videos

  • HALOAKANES AND HALOARENES

    CHHAYA PUBLICATION|Exercise Practise set 10 (Answer the following questions)|10 Videos

  • HYDROGEN

    CHHAYA PUBLICATION|Exercise PRACTICE SET -9|5 Videos

Similar Questions

Explore conceptually related problems

trans-2-phenyl-1-bromocyclopentane reacts with alcoholic KOH to form-

What happens when 1,2-dibromopropane is refluxed with ethanolic KOH solution ?

What happens when ethylene reacts with alkaline KMnO4 solution ?

What happens when ethylene gas is passed through a cold and alkaline KMnO_4 solution ?

Which alkyne, when oxidised with hot alkaline KMnO_4 solution,produces ethanoic acid and CO_2 ?

A sweet-smelling organic liquid (A) consisting of C,H and O boils at 78^@C . (A) on heating with conc. H_2SO_4 , formula of (B) is CH_2. (B) decolourises brominewater and alkaline KMnO_4 solution. Again, each mole of (B) absorbs one mole of H_2 at high temperature in the presence of Ni catalyst. Identify A and B .

An organic compound A (C_8H_6) reacts with dilute H_2SO_4 in presence of mercuric chloride to produce another compound (B) . B is also obtained when benzene reacts with an acid chloride in presence of anhyd. AlCl_3 . Identify A and B and give the reactions involved.

1 (N) H_2SO_4 solution contains how many moles H_2SO_4 :

Ammonia forms the complex [Cu(NH_(3))_(4)]^(2+) with copper ion in alkaline solution but not in acidic solution. This is due to the reason that :

CHHAYA PUBLICATION-HYDROCARBONS-SOLVED WBCHSE SCANNER
  1. How can acetaldehyde be prepared from acetylene ?

    Text Solution

    |

  2. Write structures of A and B in the following reactions: Which one...

    Text Solution

    |

  3. A hydrocarbon (A) is obtained when 1,2-dibromoethane reacts with alcoh...

    Text Solution

    |

  4. Which one of the isomers of xylene [C6H4(CH3)2] produces only one tris...

    Text Solution

    |

  5. Mention the product: H2C=CH2 overset(H2O""//"air"(O2))underset(PdCl2,C...

    Text Solution

    |

  6. What will be obtained : Chloroform is heated with silver powder.

    Text Solution

    |

  7. Writes structures of A,B and C

    Text Solution

    |

  8. How will you convert ? (i) HC-=CH to H3C-CH2-CH3

    Text Solution

    |

  9. An organic compound (A) compound of C and H contains 85.71 % C. it sho...

    Text Solution

    |

  10. Write equations of all the steps of the reaction of methane with chlor...

    Text Solution

    |

  11. Identify A and B : H2C=CH2overset(conc.H2SO4)toAoverset(H2O)underset("...

    Text Solution

    |

  12. Fill in the blank: ………. (organic compound ) is obtained when an aqueou...

    Text Solution

    |

  13. Write the structure of an organic compound which reacts with water to ...

    Text Solution

    |

  14. Fill in the blank: Benzene reacts with CH3COCl in the presence of anh...

    Text Solution

    |

  15. Convert benzene into aniline by using the following reagents in correc...

    Text Solution

    |

  16. What is 90% benzol ? How can 90% benzol be obtained from light oil ?

    Text Solution

    |

  17. Write the balanced equation for the reaction when water is added to ca...

    Text Solution

    |

  18. Write structures of the organic products obtained in the following re...

    Text Solution

    |

  19. Write structures of the organic products obtained in the following re...

    Text Solution

    |

  20. Identify (X) and (Y) in the following reactions:

    Text Solution

    |