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{:("1. Electrovalent bonding","a. Benzen...

`{:("1. Electrovalent bonding","a. Benzene"),("2. Covalent bonding","b. Heitler and London"),("3. Valence Bond theory","c. Electron transfer"),("4. Polarised Bond","d. Electron sharing"),("5. Resonance","e. Fajan.s theory"),(,"f. Aluminium chloride"):}`

Text Solution

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The chemical bond formed by sharing of two valence electrons between the two atoms is called covalent bond. e.g. Covalent bond is formed between oxygen and each of the hydrogen in a water molecule `(H_2O).`
Each of the covalent bonds contains two electrons - one from a hydrogen atom and one from the oxygen atom. Both atoms share the electrons. `H:underset (* *)overset(* *)O:H`
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