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16. What are onic or electrovalentcompounds?Giveanexampleofanioniccompound.Explainwithreason four properties of these compounds. |
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Answer» 1.The compounds containing ionic bonds are known as ionic compounds. They are also known as electrovalent compounds.2. Example for ionic compound is NaCl.3.Properties of ionic compounds are:a) Ionic compounds have high melting points and high boiling points.High temperatures are required to overcome the attraction between the positive and negative ions in ionic compounds. Therefore, a lot of energy is required to melt ionic compounds or cause them to boil.b))Ionic compounds have Boiling and melting points(for eg: NaCl M.P is high that is 800 ° c.and High B.p of 1413 °cc). Ionic compounds are usually soluble in water but insoluble in organic solvents like alcohol, benzene etc.For example Nacl is soluble in water but insoluble in benzene.d). ionic compounds conduct electricity when dissolved in water or melted.For eg: when sodium chloride is dissolved in water it conducts electricity.3) |
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