Home
Class 11
CHEMISTRY
Statement 1: BF(3) moleculeis planar whi...

Statement 1: `BF_(3)` moleculeis planar while `NF_(3)` is pyramidal.
Statement 2: N atom is smalar in size as compared ot B atom.

A

Statement-1 is true, Statement-2 is also true, Statement -2 is the correct explanation of statement-1

B

Statement -1 is true , Statement 2 is also true, Statement-2 is not the correct explanation of Statement-1

C

Statement-1 is true, Statement-2 is false.

D

Statement-1 is false, Statement-2 is true.

Text Solution

Verified by Experts

The correct Answer is:
b
In `BF_(3),` the B atom has three shared electron pairs while in `NF_(5),` the N atom has five shared pairs of electrons.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise MATRIX-MATCH TYPE QUEDTIONS|6 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (TYPE -1)|29 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise MULTIPLE CHOICE ANSWER TYPE MCQs|5 Videos

  • CARBOXYLIC ACIDS AND THEIR DERIVATIVES

    DINESH PUBLICATION|Exercise Unit test|20 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    DINESH PUBLICATION|Exercise All Questions|310 Videos

Similar Questions

Explore conceptually related problems

Assertion(A) - BF_3 molecule is planar but NF_3 is pyramidal Reason( R )-N atom is smaller than B

The BF_3 is a planar molecule where as NF_3 is pyramidal because :

Statement-1: NCl_(3) is hydrolysed by water by NF_(3) is not hydrolysed. Statement-2: N does not has vacant orbital for expansion of octet.

Statement-1 : Bond dissociation energy of F_(2) is more than Cl_(2) . Statement-2 : Due to smaller size of fluorine there are greater electron repulsions between the F atoms than Cl atoms.

Statement-1 BF_(3) is a weaker Lewis acid than BCl_(3) Statement -2: BF_(3) molecule is stabilized to a greater extent than BCl_(3) by p pi -p pi back bonding.

Assertion:- NO_(3)^(-) is planar while NH_(3) is pyramidal Reason:- N in NO_(3)^(-) is sp^(3) and in NH_(3) it is sp^(3) hybridised with one ione pair.

Statement-1: NH_(3) is more basic than NF_(3) Statement-2: F is more electronegative than H.

DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -REASON TYPE QUESTIONS
  1. Statement 1 : All molecules with polar bonds may not have dipole momen...

    Text Solution

    |

  2. Statement 1: H(2) molecule is more stable than H(2)-HE molecule Stat...

    Text Solution

    |

  3. Statement 1: N(2) and NO^(+) are both dia-magnetic. Statement 2: NO^...

    Text Solution

    |

  4. Statement 1: PF(5) molecule is little less stable as compared to SF(6)...

    Text Solution

    |

  5. Statement 1: The addition of electron in antibonding M.O. decreases bo...

    Text Solution

    |

  6. Statement 1: When a magnet is dipped in liquid oxygen, some of it stic...

    Text Solution

    |

  7. Statement 1 : Bond order in a stable molecule can be fractional. St...

    Text Solution

    |

  8. Statement 1: SF(6) molecular has octahedral geometry Statement 2: Su...

    Text Solution

    |

  9. Assertion : All F - S - F angle in SF(4) are greater than 90^(@) but ...

    Text Solution

    |

  10. Statement 1: Molecular nitrogen is less reactive than molecular oxygen...

    Text Solution

    |

  11. Assertion: Boron always froms covalent bond. Reason: The small size ...

    Text Solution

    |

  12. Assertion(A) - In case the central atom in a molecule is surrounded on...

    Text Solution

    |

  13. Statement 1: There are ten valence electrons on the sulphur atom in SF...

    Text Solution

    |

  14. Statement 1: BF(3) moleculeis planar while NF(3) is pyramidal. State...

    Text Solution

    |

  15. Statement 1: o-nitrophenol has higher boilling point than p-nitropheno...

    Text Solution

    |

  16. Statement 1: The B.O. of F(2) molecule is 1. Statement 2: In F(2) mo...

    Text Solution

    |