The correct order of melting points of the following salts is

Options

A $\mathrm{I}>$ \mathrm{II} $>\mathrm{III}$
BII > I > III
CIII > II > I
DII > III > I

Correct answer

B. II > I > III

Step-by-step solution

Smaller the size of anion, smaller is the covalent character and higher will be its melting point. Hence, the order of melting point of lithium salts is

\mathrm{LiF}>\mathrm{LiCl}>\mathrm{LiBr}

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