Question

1 mole of a substance consists of a number of particles equal to ____.

• A. avogadro's number
• B. molecule number
• C. mole number
• D. formulae number

Answer 1

The correct option is A avogadro's number

$1\text{mole}=6.022\times {10}^{23}\text{particles}$. This fixed value is called Avogadro number.