Answer :
A double covalent bond contains 2 pairs of electrons. Option B.
A double covalent bond is a covalent bond formed by atoms sharing two pairs of electrons. A double bond is a type of chemical bond in which four electrons are shared between two atoms in a molecule. In a double bond, two atoms share two electron pairs.
A bond in which two atoms share two electron pairs. triple covalent bond. A bond in which two atoms share three pairs of electrons. A double bond shares two pairs of electrons and a triple bond shares three pairs of electrons. A bond that shares more than one pair of electrons is called a multiple covalent bonds.
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