For unknown compound 1, the melting point is very high and it is soluble in wate

Question

For unknown compound 1, the melting point is very high and it is soluble in water which suggests that it is an ionic compound.

For compound 2, the strong electrical conductivity and solubility in water suggests the dissolution of the compound to produce ions when dissolved in water. Hence, it is an ionic compound.

For compound 3, the insolubility in water and a low boiling point suggests that the compound is molecular.

No electrical conductivity and solubility in a molecular solvent such as hexane suggests that compound 4 is molecular.

Explanation / Answer

-1 C 7672 C

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