Which one is highest melting point halide:

N a C l

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N a l

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N a B r

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N a F

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Solution

The correct option is D $N a F$
For the same alkali metal, the decreasing order of the melting points of alkali metal halides is
Fluoride > chloride > bromide > iodide.
Thus among the given alkali metal halides, sodium fluoride has the highest melting point (1298 K).
Option D is correct.

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C s_{2} O < R b_{2} O < K_{2} O < N a_{2} O < L i_{2} O

N a_{2} O_{2} < K_{2} O_{2} < R b_{2} O_{2} < C s_{2} O_{2}

L i H C O_{3} < N a H C O_{3} < K H C O_{3} < R b H C O_{3} < C s H C O_{3}

N a F < N a C l < N a B r < N a l

682^{\circ} C

988^{\circ} C

Arrange in increasing order of dipole moment.

$N a F, N a C l, N a B r, N a I$

Which one is the highest melting halide

Which halide has the highest melting point ?

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