Home
Class 11
CHEMISTRY
(A) : Benzene decolourises cold alkaline...

(A) : Benzene decolourises cold alkaline potassium permanganate solution
(R) : Benzene is aromatic hydrocarbon 

A

Both A and R are true, and R is correct explanation of A

B

Both A and R are true, and R is not the correct explanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • AROMATIC HYDROCARBONS

    AAKASH SERIES|Exercise OBJECTIVE EXERCIES - 1 (CARCINOGENICITY)|3 Videos
  • AROMATIC HYDROCARBONS

    AAKASH SERIES|Exercise OBJECTIVE EXERCIES - 2 (BENZENE)|42 Videos
  • AROMATIC HYDROCARBONS

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (VERY SHORT ANSWER QUESTIONS)|6 Videos
  • ALKALINE EARTH METALS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE ADDITIONAL QUESTIONS|15 Videos
  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 3 (RECENT AIPMT/NEET QUESTIONS)|20 Videos

Similar Questions

Explore conceptually related problems

Which one of the following compounds, decolourises cold alkaline potassium permanganate solution?

Carbon atoms show sp^(2) hybridisation in compounds A and B. A decolourises alkaline potassium pemanganate solution whereas B cannot decolourise the solution. Then A and B are

(A) : Benzene is almost non-reactive and it can not be oxidised easily (R ) : Benzene is aromatic and obeys Hinckel rule.

(A) Benzene does not undergo polymerisation. (R) Benzene loses aromaticity if involved in polymerisation

The solution of acetic acid in benzene conains

A pale green crystalline inorganic salt (A) dissolves freely in water. It gives a brown precipitate on addition of aqueous NaOH. The solution of (A) also gives a black precipitate on bubbling H_(2)S in alkaline medium. An aqueous solution of (A) decolourises the pink colour of the permanganate solution. The metal in the salt solution is :

How do you count the following observations? a) Though alkaline potassium permanganate and acidic potassium permanganate both are used as oxidants, yet in the manufacture of benzoic acid from toluene we use alcoholic potassium permanganate as an oxidant. Why ? Write balanced redox equation for the reaction. b) When concentrated sulphuric acid is added to inorganic mixture containing chloride, we get colourless pungent smelling gas HCl, but if the mixture contains bromide then we get red vapour of bromine. Why ?

The solution of acetic acid in benzene contains

(A) : Benzene prefers to participate in substitution reactions than addition reactions (R) : Addition products of benzene do not retain resonance stability

AAKASH SERIES-AROMATIC HYDROCARBONS-OBJECTIVE EXERCIES - 1 (BENZENE)
  1. Which of the following reaction is useful to convert benzene into tolu...

    Text Solution

    |

  2. In benzene molecule there are three pi bonds and

    Text Solution

    |

  3. (A) : Benzene decolourises cold alkaline potassium permanganate soluti...

    Text Solution

    |

  4. Which is false statement with respect to benzene ?

    Text Solution

    |

  5. In the above sequence B is

    Text Solution

    |

  6. Which of the following behaves as a saturated compound?

    Text Solution

    |

  7. C2H2 overset("Hot metal tube")(rarr)  > A overset("Fuming "H2SO4)(rarr...

    Text Solution

    |

  8. What is the molecular formula of the product formed when benzene is re...

    Text Solution

    |

  9. The compound prepared by substitution reaction of benzene is

    Text Solution

    |

  10. Sodium salt of benzoic acid when heated with which of the following gi...

    Text Solution

    |

  11. The two structures of benzene proposed by Kekule differ in

    Text Solution

    |

  12. Resonance energy of benzene is

    Text Solution

    |

  13. In benzene there is

    Text Solution

    |

  14. The C-C bond lengths in benzene are

    Text Solution

    |

  15. The number of pi electrons in benzene is

    Text Solution

    |

  16. (A) : Benzene prefers to participate in substitution reactions than ad...

    Text Solution

    |

  17. The organic compound 'X' is

    Text Solution

    |

  18. According to the molecular formula, benzene appears to be highly unsat...

    Text Solution

    |

  19. Which of the following statements is wrong

    Text Solution

    |

  20. A group which deactivates the benzene ring towards electrophilic subst...

    Text Solution

    |