Which of the following chemical bonds has most ionic character?

L i H

No worries! We‘ve got your back. Try BYJU‘S free classes today!

H F

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C s H

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

H I

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $C s H$
According to Fajan's rule, larger the size of the cation, greater is the ionic character. $C s$ , having the greatest size, has high electropositive character. Also, the hydride and iodide anion are nearly of the same radius, therefore, $H I$ is less ionic than $C s H$ . While HF and LiH have major covalent character.

Suggest Corrections

Similar questions

L i H, N a H

C s H

Question 3

Metal hydrides are ionic, covalent or molecular in nature. Among LiH,NaH, KH,RbH,CsH, the correct order of increasing ionic charcter is

(a) LiH > NaH > CsH > KH > RbH

(b) LiH < NaH < KH < RbH < CsH

(d) NaH > CsH > RbH > LiH > KH

L i H, N a H, K H, R b H

C s H

Arrange the following.
$C a H_{2}, B e H_{2}$ and $T i H_{2}$ in order of increasing electrical conductance.

LiH, NaH and CsH in order of increasing ionic character.

H - H, D - D and F - F in order in order of increasing bond dissociation enthalpy.

$N a H, m g H_{2}$ and $H_{2} O$ in order of increasing reducing property.

Join BYJU'S Learning Program