Home
Class 12
CHEMISTRY
Assertion(A) - In case the central atom ...

Assertion(A) - In case the central atom in a molecule is surrounded only by shared pairs of electrons, the molecule has a regular geometry.
Reason(R) -The shared pair of electrons repel each other with equal force so all bonds are equidistant from each other.

A

Both A and R true and R is the correct explanation of A

B

Both A and R true and R is not a 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:
A
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|20 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Brain Teaser-1|40 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Integer|4 Videos

  • CARBOXYLIC ACIDS

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQS)|13 Videos

  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Additional Numerical Problems For Practice|16 Videos

Similar Questions

Explore conceptually related problems

Molecule which contains only bonded pairs of electrons on the central atom is

A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is :

Which of the following molecules has one lone pair of electrons on the central atom

In which of the following molecules, the central atom has one lone pair and three bond pairs of electrons,

In which of the following molecules, is the shared pair of electrons contributed by only one individual atom or molecule?

Which among the following molecules contains only bonded pairs or no lone pairs of electrons on the central atom?

Number of bond pairs of electrons present in the central atom of ammonia molecule is

Assertion : The atoms in a covalent molecule are said to share electrons, yet some covalent molecule are polar. Reason :In a polar covalent molecule , the shared electron spend more time on the average near one of the atoms .

Knowledge Check

  • Molecule which contains only bonded pairs of electrons on the central atom is

    A
    `H_2O`
    B
    `NH_3`
    C
    `BeCl_2`
    D
    `BeF_3`

  • Which of the following molecules has one lone pair of electrons on the central atom

    A
    `H_(2)O`
    B
    `NH_3`
    C
    `CH_(4)`
    D
    `PCl_(5)`

  • In which of the following molecules, the central atom has one lone pair and three bond pairs of electrons,

    A
    `H_(2)S`
    B
    `AlCl_(3)`
    C
    `NH_(3)`
    D
    `BF_(3).`
    • DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Reason Assertion
    1. Assertion(A) - In case the central atom in a molecule is surrounded on...

      Text Solution

      |

    2. Assertion(A) - The bond order in a molecule can have any value, positi...

      Text Solution

      |

    3. Assertion(A) - Water is speClally effective in screening the electrost...

      Text Solution

      |

    4. Assertion(A) - When two uncharged similar atoms are brought very close...

      Text Solution

      |

    5. Assertion(A) - The nearly tetrahedral arrangement of the orbitals abou...

      Text Solution

      |

    6. Assertion(A) - There are ten valence electrons on the sulphur atom in ...

      Text Solution

      |

    7. Assertion(A) - Fluorine molecule has bond order one. Reason(R)-The n...

      Text Solution

      |

    8. Assertion(A) - The geometry of formaldehyde molecule is trigonal plana...

      Text Solution

      |

    9. Assertion(A) - Silicon tetrafluoride. SiF4 is non polar even though fl...

      Text Solution

      |

    10. Assertion(A) - H2 molecule is more stable than He molecule. Reason(R...

      Text Solution

      |

    11. Assertion : The atoms in a covalent molecule are said to share el...

      Text Solution

      |

    12. Assertion : Water is a good solvent for ionic compounds but poor one...

      Text Solution

      |

    13. Assertion (A): Lithium chloride is predominantly covalent compound. ...

      Text Solution

      |

    14. Assertion(A) - BF3 molecule is planar but NF3 is pyramidal Reason( R...

      Text Solution

      |

    15. Assertion(A) - FeCl3 undergoes sublimation at a lower temperature. R...

      Text Solution

      |

    16. Assertion(A) - The bond order of NO molecule is 2.5. Reason( R )-NO ...

      Text Solution

      |

    17. Assertion(A) - CO3^(2-) ion is relatively more stable than H2CO3. R...

      Text Solution

      |

    18. Assertion(A) - Magnetic moment of super oxide ion is much larger than ...

      Text Solution

      |

    19. Assertion(A) - OF molecule is theoretically more stable than F2 Reas...

      Text Solution

      |

    20. Assertion(A) - In N2 molecule, the N atoms are bonded by one sigma and...

      Text Solution

      |