Question

Question 1
Ethane with the molecular formula ${\text{C}}_2{\text{H}}_6$ has:
(a) 6 covalent bonds
(b) 7 covalent bonds
(c) 8 covalent bonds
(d) 9 covalent bonds

Answer 1

The answer is (b). Ethane with the molecular formula ${\text{C}}_2{\text{H}}_6$ has 7 covalent bonds as there are 1 C- C bond and 6 C- H bond.