Help with number 2

2. Which of the following does not describe a pure substance?
(A)
B
D
Molecules of the same type of atom attracted to each other
Molecules of different types of atoms that are not attracted each
other
Individual atoms of different types repeated to form extended
structures
Individual atoms of the same type connected to form extended
structures

Help with number 2 2 Which of the following does not describe a pure substance A B D Molecules of the same type of atom attracted to each other Molecules of dif class=