Question

What is double bond how to understand it carefully

Answer 1

A double bond is a type of chemical bond in which two electron pairs are shared between two atoms. This type of bond involves four bonding electrons between atoms, rather than the usual two bonding electrons involved in a single bond. Because of the large number of electrons, double bonds tend to be reactive. Double bonds are shorter and stronger than single bonds.

Example :-

Ethylene (C2H4) is a hydrocarbon with a double bond between the two carbon atoms. Other alkenes also contain double bonds.

CH2=CH2