Question

Ranking single, double, triple bonds in order of increasing flexibility and increasing strength: PH3, CF4, CO2, SO3, HCN, CO, H2O

Answer 1

Increasing flexibility: CF4 < SO3 < CO2 < PH3 < H2O < HCN < CO

Increasing strength: CF4 < CO2 < SO3 < PH3 < H2O < HCN < CO

Step-by-step explanation:

• CF4 has only single bonds, which makes it the least flexible molecule on the list.
• SO3 and CO2 both have double bonds, making them more flexible than CF4, but less flexible than PH3, which has a single bond.
• H2O and HCN have one double bond and one single bond, making them more flexible than SO3 and CO2, but less flexible than PH3.
• CO has a triple bond, making it the most flexible molecule on the list.
• In terms of strength, CF4 has only single bonds and is the weakest molecule.
• CO2 and SO3 both have double bonds, making them stronger than CF4 but weaker than PH3, which has a single bond.
• H2O and HCN have one double bond and one single bond, making them stronger than CO2 and SO3 but weaker than PH3.
• CO has a triple bond, making it the strongest molecule on the list.