Question

2. Name a solvent in which electrovalent compounds are soluble and a solvent in which

they are insoluble. (CBSE 2012)

Answer 1

Electrovalent or ionic compound being polar are soluble in polar solvents, for example H20. However, the are in soluble in non polar solvents like toluene, petroleum, ether, etc.

Answer 2

The solubility of electrovalent compounds

• The compounds with the ionic bond are called electrovalent compounds.
• Electrovalent compounds are soluble in polar solvents such as water and insoluble in non-polar solvents such as kerosene, benzene etc.
• It is because, when electrovalent compounds are dissolved in polar solvents, the force holding the molecules together is decreased and thus makes them soluble in the solvents.
• On the other hand, electrovalent compounds are insoluble in non-polar solvents such as kerosene, benzene as these solvents increase the electrostatic force of attraction.

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