Avogadro’s Number MDCAT MCQs with Answers

Avogadro’s number represents the number of particles in:
A) 1 atom
B) 1 mole of a substance
C) 1 molecule
D) 1 gram of a substance

Avogadro’s number is applicable to:
A) Only gases
B) Only solids
C) Only liquids
D) All substances

Avogadro’s constant refers to:
A) Number of molecules per gram
B) Number of molecules per mole
C) Number of atoms per molecule
D) Number of ions per mole

Avogadro’s number represents the number of particles in:
a) 1 gram of a substance
b) 1 mole of a substance
c) 1 atom of an element
d) 1 molecule of a compound

Avogadro’s number applies to:
a) Atoms only
b) Molecules only
c) Any type of particles
d) Compounds only

Avogadro’s number is most commonly used in calculations involving:
a) Mass
b) Volume
c) Moles
d) Energy

Avogadro’s constant is measured in units of:
a) Particles per mole
b) Mole per particle
c) Particles per gram
d) Molecules per liter

If 1 mole of oxygen atoms weighs 16 grams, what is the weight of 2 moles?
a) 16 grams
b) 32 grams
c) 48 grams
d) 64 grams

Avogadro’s number is significant because it:
a) Connects the macroscopic and microscopic world
b) Defines atomic size
c) Measures atomic radius
d) Determines density

The molar mass of a substance is numerically equal to:
a) Avogadro’s number in grams
b) The mass of one atom
c) The mass of one mole
d) The density of the substance

The relationship between moles, Avogadro’s number, and particles is:
a) Particles = Moles / Avogadro’s number
b) Particles = Moles × Avogadro’s number
c) Particles = Avogadro’s number – Moles
d) Particles = Avogadro’s number / Moles