A : Cesium
B : Barium
C : Oxygen
D : Iodine
Internuclear distance
AD : 387 pm
A2C : 307 pm
BC : 275 pm
BD2 : 355 pm
AD > BD2 > A2C > BC
1.AD
2.BC
3.Strength of ionic bond is dependent on the charge on cation and anion and also dependent on internuclear distance.
(a) Strength of ionic bond is directly proportional to charge on cation
(b) Strength of ionic bond is directly proportional to charge on anion
(c) Strength of ionic bond is inversely proportional to internuclear distance.
Considering all these,
Strength of ionic bond : BC > A2C > BD2 >AD(Answer)
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