Home
Class 12
CHEMISTRY
The tendency of X in BX(3)(X=F,Cl,OMe, N...

The tendency of X in `BX_(3)(X=F,Cl,OMe, NMe)` to form a `pi` bond with boron follows the order

A

`BCl_(3) lt BF_(3) lt B(OMe)_(3) lt B (NMe_(2))_(3)`

B

` BF_(3) lt BCl_(3) lt B(OMe)_(3) lt B (NMe_(2))_(3)`

C

`BCl_(3) lt B(NMe_(2))_(3) lt B(OMe)_(3) lt BF_(3)`

D

`BCl_(3) lt BF_(3) lt B(NMe_(2))_(3) lt B(OMe)_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Reason : Better extent of back bonding , Note-Cl can't donte 3p electron pair to boron as fluorine because of large size 3p orbital.
Promotional Banner

Topper's Solved these Questions

  • KVPY

    KVPY PREVIOUS YEAR|Exercise Matematics|1 Videos

  • KVPY

    KVPY PREVIOUS YEAR|Exercise Part 1 Chemistry|45 Videos

  • KVPY

    KVPY PREVIOUS YEAR|Exercise Part 2 Chemistry|15 Videos

  • KVPY 2021

    KVPY PREVIOUS YEAR|Exercise PART II CHEMISTRY|10 Videos

Similar Questions

Explore conceptually related problems

The Lewis acid nature of BX_(3) follows the order:

The tendency to form the anion X^(-) is greatest with

As the tendency to from p pi-dpi bond decreases, the tendency for the polymerisation increases. So the correct order of tendency of polymerisation is :

Consider the following information (F=F or Cl) According to given information choose the incorrect order of bond length :

The total number of boron - oxygen bonds in borax is 'x' and boron - oxygen - boron bonds are 'y'. Then the value of x-y is :

In the tetranuclear unit of borax, [B_(4)O_(5)(OH)_(4)]^(2-) , the number of B-O-B bridges formed between sp^(3) borons and sp^(2) borons is x and the number of B-O-B bridges formed between sp^(3) borons and sp^(3) borons is y, then (x-y) =

Boron with hydrogen forms a number of hydrides which are known are boranes. These hydrides are classified into closoboranes and nidobarances. The simplest hydride of boron is diborane. Boron apart from having (2c, 2e) bonds also contain (3c, 2e) bonds. Which of the following is an electron-deficient compound ?

KVPY PREVIOUS YEAR-KVPY-PART-1 CHEMISTRY
  1. The amount (in mol) of bromoform (CHBr(3)) produced when 1.0 mol of ac...

    Text Solution

    |

  2. The following compound can readily be prepared by Williamson ethe...

    Text Solution

    |

  3. X and Y are

    Text Solution

    |

  4. The hyperconjugative stabilities of tert-butyl cation and 2-butene, re...

    Text Solution

    |

  5. Benzaldehyde can be converted to benzyl alcohol in concentrated aqueou...

    Text Solution

    |

  6. The major product of the following reaction is

    Text Solution

    |

  7. Among the following species, the H-X-H angle (X=B,N or P ) follows the...

    Text Solution

    |

  8. The ionic radii of Na^(+),F^(-),O^(2-),N^(3-) follow the order

    Text Solution

    |

  9. The oxoacid of phosphorus having the strongest reducing property is

    Text Solution

    |

  10. Among C, S and P the element (s) that produces (s) SO(2) on reaction w...

    Text Solution

    |

  11. The complex that can exhibit linkage isomerism is

    Text Solution

    |

  12. The tendency of X in BX(3)(X=F,Cl,OMe, NMe) to form a pi bond with bor...

    Text Solution

    |

  13. Consider the following statement about Langmuir isotherm : (i) The f...

    Text Solution

    |

  14. Among the following , the plot that correctly represents the conductom...

    Text Solution

    |

  15. The correct representation of wavelength intensity relationship of an ...

    Text Solution

    |

  16. The pressure (P)- volume (V)isotherm of a van der Waals gas, at the te...

    Text Solution

    |

  17. A buffer solution can be prepared by mixing equal volumes of

    Text Solution

    |

  18. The plot of total vapour pressure as a function of mole fraction of th...

    Text Solution

    |

  19. On complete hydrogenation, natural rubber produces

    Text Solution

    |

  20. The average energy of each hydrogen bond in A-T pair is x kcal mol^(-1...

    Text Solution

    |