Question

The total no of ions present in 111 g of $CaC{l}_2$ is

• A. One mole
  
• B. Two moles
  
• C. Three moles
• D. Four moles

Answer 1

The correct option is C Three moles

$CaC{l}_2$ on dissociation gives one $C{a}^{2+}$ ion and two $C{l}^{-1}$ ions. Therefore it gives 3 moles of ions.