Home
Class 12
CHEMISTRY
the ascending order of stability of the ...

the ascending order of stability of the carbanion `CH_(3)(P),C_(6)H_(5)overline(C)H_(2)(Q),(CH_(3))_(2)overline(C)H(R)` and
`H_(2)overline(C)-CH=CH_(2)(S)` is

A

`P lt R lt S lt Q`

B

`R lt P lt S lt Q`

C

`R lt P lt Q lt S`

D

`P lt R lt Q lt S`

Text Solution

Verified by Experts

The correct Answer is:
B
Stability of carbanions is enchanced by
(i) presence of conjugation
(i) presence of group exerting -l effect
so correct order is
`C_(6)H_(5)overline(C)H_(2) gt H_(2)overline(C)-CH=CH_(3)gt overline(C)H_(3)gt(CH_(3))_(2)overline(C)H`
Promotional Banner

Topper's Solved these Questions

  • PRACTICE SET 08

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 2 OBJECTIVE TYPE|2 Videos

  • PRACTICE SET 10

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PHYSICS & CHEMISTRY)|50 Videos

Similar Questions

Explore conceptually related problems

The ascending order of stability of the carbanion overset(-)(C)H_(3)(P), C_(6)H_(5)overset(-)(C)H_(2)(Q), (CH_(3))_(2)overset(-)(C)H(R) and H_(2)overset(-)(C)-CH = CH_(2) is

The order of decreasing stability of the carbanions : (CH_(3))_(3)C^(-)(I),(CH_(3))_(2)CH^(-)(II), CH_(3)CH_(2)^(-)(III), C_(6)H_(5)CH_(2)^(-)(IV) is

The order of stability of the following carbocations underset((I))(CH_(2)=overset(+)(C)H-CH_(2)) , underset((II))(CH_(3)-CH_(2)-overset(+)(C )H_(2))

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 09-PAPER 1 (PHYSICS & CHEMISTRY)
  1. Which N-atom of cyanide species is more basic?

    Text Solution

    |

  2. In SiF(6)^(2-) and SiCl(6)^(2-). which one exist?

    Text Solution

    |

  3. In the temperature changes from 27^(@)C to 127^(@)C, the relative perc...

    Text Solution

    |

  4. Dehydration of CH(3)-underset(OH)underset(|)(C)H-CH(2)-CH(3) is an aci...

    Text Solution

    |

  5. Manufacture of acetic acid by fermentation process is called

    Text Solution

    |

  6. The basicity of aniline is less than that of cyclohexylamine. This is ...

    Text Solution

    |

  7. Coupling of diazonium salts of following takes place in the order

    Text Solution

    |

  8. Proteins give white precipitate with Millon's regent, which is -

    Text Solution

    |

  9. For the purification of organic compounds, the latest technique follow...

    Text Solution

    |

  10. the ascending order of stability of the carbanion CH(3)(P),C(6)H(5)ove...

    Text Solution

    |

  11. Which of the following is a pseudohalide?

    Text Solution

    |

  12. pK(h) would be minimum for the salt

    Text Solution

    |

  13. Among the following, the compound that can be most readily sulphonated...

    Text Solution

    |

  14. Among the following sets of reactants which one produces anisole?

    Text Solution

    |

  15. How many geometrical isomers of the compound [Pt(NH(3))(Br)(Cl)(Py)] w...

    Text Solution

    |

  16. The product P formed in the following reaction sequence is Glucoseov...

    Text Solution

    |

  17. CH(3)COOH+PCl(5)to'P', choose the correct option from the following

    Text Solution

    |

  18. The plastic household crockery is prepared by using

    Text Solution

    |

  19. Sodium benzoate is a commonly used foor preservative. It is

    Text Solution

    |

  20. By wurtz reaction a mixture of methyl iodide and ethyl iodide gives

    Text Solution

    |