Home
Class 11
CHEMISTRY
In an ionic bond, the cation tends to po...

In an ionic bond, the cation tends to polarize the electron cloud of the anion by pulling electron dens towards itself. This causes development of covalent character in the ionic bond because the electron dens gets localised in-between the nuclei. The tendency of the cation to bring about the polarization of the anion expressed as its polarizing power. The ability of ion to undergo polarization is called its polarisability. The polarising power of a cation or an anion is decided on the basis of Fajans' rules.
The ionic conductance of which of the following is the highest?

A

`Li^+(aq) `

B

`Na^+ (aq)`

C

`K^+ (aq)`

D

`Cs^+ (aq)`

Text Solution

Verified by Experts

The correct Answer is:
D
Charge density of `Cs^+(aq)` is the lowest in group 1 ions, so it is less hydrated. Hence, ionic conductance of `Cs^+(aq)` is the highest.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING

    BRILLIANT PUBLICATION|Exercise LEVEL-III ( Satement Type )|5 Videos

  • CHEMICAL AND IONIC EQUILIBRIUM

    BRILLIANT PUBLICATION|Exercise Level - III (Linked Comprehension Type Questions)|1 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    BRILLIANT PUBLICATION|Exercise QUESTION (LEVEL -ll)|42 Videos

Similar Questions

Explore conceptually related problems

Which of the following is a polar molecule?

Which of the followng is a polar molecule

State Fajan's rule regarding the partial covalent character of an ionic bond.

Represent z in the polar form.

What is the coordination number of cation and anion in Caesium chloride?

State Fajan's rule regarding the partial covalent character of an Ionic bond.

The ionic conductance of the following cations in a given concentration are in the order