Which of the following pairs of compounds are structural isomers?

What is the IUPAC name of following compound?

7. Which of the following pairs of compounds are structural isomers? A) C1 ci | | CH3-CH-CH2-CH3 and CH3-CH2-CH-CH3 B) CI-CH2-CH2-CH2-CH3 and CH3-CH2-CH2-CH2-C1 C) CH3-CH-CH3 and CH3-CH-CH2-C1 | 1 CH2C1 3 D) ci 1 CH3-C- CH3 | CH3-CH-CH3 | CH2C1 and CH3 E) and 11. What is the major product of the reaction shown below? H+ CH3-CH2-CH = CH2 + HOH CH3 C1