Home
Class 12
CHEMISTRY
The stable bivalency of Pb and trivalenc...

The stable bivalency of Pb and trivalency of Bi is

A

Due to d contraction in Pb and Bi

B

Due to relativistic contraction of the 6s orbitals of Pb and Bi, leading to inert pair effect

C

Due to screening effect

D

Due to attainment of noble configuration

Text Solution

Verified by Experts

The correct Answer is:
B
In the last element of the group, after the removal of electrons from p-orbitals, the remaining `ns^(2)` electrons behave like stable noble gas and do not take part in compound formation. This reluctance of the s- electron pair to take part in chemical combination is called inert pair effect. Thus, for the elements at the bottom of a group, lower oxidation state is more stable.
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES

    ERRORLESS |Exercise Critical Thinking Objective Questions|20 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES

    ERRORLESS |Exercise JEE Section Only one choice correct answer|34 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES

    ERRORLESS |Exercise Ordinary Thinking Objective Questions Electronegativity|27 Videos

  • CHEMISTRY IN EVERYDAY IN LIFE

    ERRORLESS |Exercise Critical Thinking (Objective question )|25 Videos

  • COORDINATION CHEMISTRY

    ERRORLESS |Exercise JEE(ADVANCED 2018 MORE THAN ONE CHOICE CORRECT ANSWER|1 Videos

Similar Questions

Explore conceptually related problems

The electronic configuration of bivalent Europium and trivalent cerium respectively is: (Atomic Number: Xe = 54, Ce = 58, Eu = 63)

Give two example of pentavalent and trivalent impurities

Define Bivalent

Lead obtained from galena ore (PbS) by air reduction or carbon reduction process contains base metal (cu, Bi, As, Sn,Zn) as impurities. Gelatin acts as addition agent in electrolysis of Pb . In the presence of gelatin, Pb becomes.

How many centromeres are present in a bivalent and how many bivalents are present in a diploid cell of human females respectively?

Give name of two bivalent anions.

ERRORLESS -CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES -Ordinary Thinking Objective Questions Valency and oxidation state
  1. Which of the following electronic configuration in the outermost shell...

    Text Solution

    |

  2. Which of the following elements show maximum valency ?

    Text Solution

    |

  3. Fluorine is the best oxidising agent because it has

    Text Solution

    |

  4. Which of the following element is found in its native state:-

    Text Solution

    |

  5. The basis of keeping the elements in the group of periodic table is

    Text Solution

    |

  6. Beryllium and aluminimum exhibit many properties which are similar . B...

    Text Solution

    |

  7. The most stable oxidation state of thallium is +1

    Text Solution

    |

  8. An element X which occurs in the second short period has an outer elec...

    Text Solution

    |

  9. Which of these is the weakest base?

    Text Solution

    |

  10. Fluorine, chlroine, bromine and iodine are placed in the same group (1...

    Text Solution

    |

  11. the pentavalence in phosphorus is more stable as compared to that of n...

    Text Solution

    |

  12. In the periodic table, the basic character of oxides

    Text Solution

    |

  13. The stable bivalency of Pb and trivalency of Bi is

    Text Solution

    |

  14. Which will show maximum non-metallic character

    Text Solution

    |

  15. All element in 3rd period have

    Text Solution

    |

  16. 3 and 6 electronic are present in the outermost orbit A and B respecti...

    Text Solution

    |

  17. Elements A and B with their respective electronic configurations 3d^(...

    Text Solution

    |

  18. Which of the following group of elements eliminates electron easily

    Text Solution

    |

  19. An ion has 18 electrons in the outermost shell it is

    Text Solution

    |

  20. Assertion : Dinegative anion of oxygen (O^(2-)) is quite common but di...

    Text Solution

    |