The total number of sigma bonds is between (C2H6) is

Ethane (C2H6) is a saturated hydrocarbon belonging to the alkane homologous series [2]. In its molecular structure, each carbon atom is sp3 hybridized, forming four single covalent bonds to achieve a stable octet. Specifically, the two carbon atoms are linked to each other by a single carbon-carbon (C–C) sigma bond. Additionally, each carbon atom is bonded to three hydrogen atoms, resulting in a total of six carbon-hydrogen (C–H) sigma bonds. Since every single covalent bond in a saturated hydrocarbon is a sigma bond, the total count is calculated by adding the one C–C bond and the six C–H bonds [2]. Therefore, ethane contains exactly seven sigma bonds [2].

Sources

1. [2] Science , class X (NCERT 2025 ed.) > Chapter 4: Carbon and its Compounds > 4.2 VERSATILE NATURE OF CARBON > p. 62