Answer: True
Explanation:
A mole is defined as the amount of substance that contains Avogardro number of the substance. Avogadro's number is given by [tex]6.022\times 10^{23}[/tex].
[tex]1mole=6.022\times 10^{23}objects[/tex]
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
Thus the statement saying Avogadro's number is the number of particles in one mole of a pure substance is true.
