Question

If a substance contains three different types of molecules, it is a ____________

• A. pure substance
• B. mixture

Answer 1

The correct option is B

mixture

The explanation for the correct answer

(B) mixture

• An impure substance is a mixture of two or more elements or compounds.
• They can be mixed in any proportion and retain their individual properties.
• If more than one type of molecule is present in a substance, it is called a mixture.
• For example, the sugar solution is a mixture as it has different sugar and water molecules.

The explanation for the incorrect answer

(A) pure substance

• A pure substance is either an element or a compound and has a fixed ratio.
• Example: Water, Oxygen

Therefore, the correct option is (B).