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Which shows the highest lattice energy ?...

Which shows the highest lattice energy ?

A

CsI

B

MgO

C

CaS

D

NaF

Text Solution

Verified by Experts

The correct Answer is:
B
`L.E. prop q_(1)q_(2) prop (1)/("size")`
order of size `{:(Mg^(+2) lt Ca^(+2)),(O^(-2)lt S^(-2)):}`so, MgO has highest lattice energy.
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