isomerism

Question 1

structural isomer

Answer 1

same molecular formula, different structure
arise from

Question 2

chain isomer

Answer 2

same molecular formula but different structural of carbon

Question 3

skeletal positions

Answer 3

same molecular formula but different structure due to different position of functional group of carbon

Question 4

functional isomer

Answer 4

same molecular formula but different arrangement of atom in functional group

Question 5

stereoisomer

Answer 5

same structural formula but different arrangement of atoms in space, they exhibit E-Z isomerism due to restricted rotation around the C=C bond