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Questions  

In which of the following ionic compounds, Hf is negative only due to lattice energy ?

(i) NaF   (ii) MgO   (iii) Li3N   (iv) Na2S

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By Expert Faculty of Sri Chaitanya
a
Only (iv)
b
Only (iii), (iv)
c
Only (ii), (iii), (iv)
d
All of these

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detailed solution

Correct option is C

Formation of oxide, nitride and sulphide (S2-) is endothermic process while formation of flouride(F-) is exothermic process.


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