Based on lattice energy and other considerations, which one of the following alkali metal chlorides is expected to have the highest melting point?

Question

Based on lattice energy and other considerations, which one of the following alkali metal chlorides is expected to have the highest melting point? (A) RbCl (B) KCl (C) NaCl (D) LiCl

Tardigrade Admin · Accepted Answer

As we go down in the group, ionic character increases hence, melting point of halides should increase but NaCl has the highest melting point (800° C ) due to its high lattice energy.

Q. Based on lattice energy and other considerations, which one of the following alkali metal chlorides is expected to have the highest melting point?

RbCl

KCl

NaCl

LiCl

As we go down in the group, ionic character increases hence, melting point of halides should increase but $N a Cl$ has the highest melting point $(80 0^{\circ} C)$ due to its high lattice energy.

Q. Based on lattice energy and other considerations, which one of the following alkali metal chlorides is expected to have the highest melting point?

RbCl

KCl

NaCl

LiCl

As we go down in the group, ionic character increases hence, melting point of halides should increase but NaCl has the highest melting point (800∘C) due to its high lattice energy.

As we go down in the group, ionic character increases hence, melting point of halides should increase but $N a Cl$ has the highest melting point $(80 0^{\circ} C)$ due to its high lattice energy.