Which of the following statements is true about 2- methylpropane and butane

Explanation: 2-methylpropane (isobutane) and butane are both alkanes with the same molecular formula C₄H₁₀. They are structural isomers, so they belong to the same homologous series (alkanes). They do not have the same boiling point—branching in 2-methylpropane lowers its b.p. compared with butane—and they have the same number of carbons (four). Saying they have exactly the same chemical properties is too strong; isomers have broadly similar reactions but not identical behavior.

• True: They are members of the same homologous series.
• False: Same boiling point (different), different number of carbons (same), exactly the same chemical properties (only similar).