Substance and Properties Multiple Choice Questions (MCQ) PDF Download

MCQ : DNA is a substance that makes up the foundations of

1. nucleus
2. cell membrane
3. vacuole
4. mitochondria

MCQ 1: A substance formed when two or more elements are mixed together without chemical reaction is known as

1. molecule
2. mixture
3. atom
4. compound

MCQ 2: The smallest part of a substance would be referred as a

1. molecule
2. electron
3. metal
4. compound

MCQ 3: A substance made from two or more different elements that have been chemically joined is called

1. solution
2. mixture
3. atom
4. compound

MCQ 4: Substances which burn in air rapidly and catch fire easily are called

1. flammable
2. inflammable
3. both a and b
4. not flammable