Which of the following are examples of homogeneous mixtures

CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties

Problem

Which of the following are examples of homogeneous mixtures? I. Air II. Steel III. Aqueous potassium manganate(VII),

\mathrm{KMnO_4(aq)}

(1) II only (2) III only (3) I and II only (4) I, II and III