2KClO3(g) MNO3→ 2KCl(s) + 3O2(g) The importance of the catalyst in the reaction above is that
A. heating may not be required before the reaction takes place B. the reaction is controllable even at a high temperature C. the reaction produces large quantity of oxygen D. the reaction takes place more rapidly at a lower temperature
Correct Answer: D
Explanation
A catalyst is a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temperature) than otherwise possible.
