Atoms and Molecules Multiple Choice Questions (MCQ) PDF Download

MCQ 1: A macromolecule found in the blood is

1. Ferritin
2. albumin
3. Hemoglobin
4. Keratin

MCQ 2: Atom is composed just of electrons and protons, this concept prevailed till

1. 1980
2. 1932
3. 1970
4. 1960

MCQ 3: The important part of the atom which is related to many physical and chemical properties is its

1. size
2. mass
3. nucleus
4. protons

MCQ 4: A molecule is the smallest particle which can exist

1. independently
2. not independently
3. in space
4. in gas form

MCQ 5: The units by which hydrogen atom is lighter than hemoglobin is

1. 70000
2. 58000
3. 78000
4. 68000