Question

what is Meant By Double Bond or Double Covalent
Bond? Give Enamples.​

Answer 1

Answer:

A double covalent bond is where two pairs of electrons are shared between the atoms rather than just one pair. Some simple molecules containing double bonds. Oxygen, O2. Two oxygen atoms can both achieve stable structures by sharing two pairs of electrons as in the diagram.

Explanation:

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Answer 2

The bond between two atoms formed by sharing of two pairs of electrons is called a double bond. Two horizontal lines between two atoms denote a double bond, e.g., O = O(O2)

Formation of oxygen molecule, O2: Oxygen atom has six electrons in its outermost shell, two short of forming a complete octet. Thus each oxygen atom in O2 shares 2 electrons with the other oxygen atom and attains stable configuration.

Formation of ethylene molecule (C2H4): In ethylene two carbon atoms share two pairs of electrons between them and the rest two electrons on each carbon atom share one electron each with two hydrogen atoms. Thus ethylene molecule has one double bond (C = C) and four single bonds (C—H).