Chemistry 5070 · O Level · Preparation of salts

Preparation of salts — practice question

Which combination of conditions is employed in the Contact process?

  • Atemperature $100\,^{\circ}\text{C}$, pressure $200\,\text{atm}$, catalyst $\text{V}_2\text{O}_5$
  • Btemperature $300\,^{\circ}\text{C}$, pressure $200\,\text{atm}$, catalyst Fe
  • Ctemperature $450\,^{\circ}\text{C}$, pressure $2\,\text{atm}$, catalyst Fe
  • Dtemperature $450\,^{\circ}\text{C}$, pressure $2\,\text{atm}$, catalyst $\text{V}_2\text{O}_5$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI