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| 1. |
Ionic bond formation takes place between sodium and chlorine. But between hydrogen and chlorine, covalent bond formation takes place. Give reason. |
| Answer» Solution :Sodium belongs to IA group and is highly ELECTROPOSITIVE. Chlorine belongs to VII A group and is highly electronegative. Sodium has very low IP value and can form `Na^(+)` ion easily. CHLROINE has very high IP value and high EA value and can form `Cl^(-)` ion easily. Thus, ionic bond results between sodium and chlorine. IP value of hydrogen is not as low as alkali metals, that is, Na. Hence, its tendency to form `H^(+)` ion is very less. Sharing of electrons takes place between hydrogen and chlorine RESULTING in the formation of polar covalent bond. | |