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Byju's Answer
Standard XII
Chemistry
Reactivity with Halogens and Hydrogen (Group 2)
Which of the ...
Question

Which of the following has highest high value of lattice energy

A
NaF
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B
LiF
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C
CsF
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D
KF
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Solution

The correct option is B LiF
Lattice energy directly proportional to charges and inversely proportional to distance…… as all these
compounds has 1 : 1 charge and common ion F so lattice energy will decrease as the M – F bond length
increases so LiF will have highest lattice energy because the distance between Li and F is shortest.

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