Chemistry · Oct / Nov 2016 · Paper 11 · Question 18

Gold is used as a catalyst in some chemical reactions. In these reactions, gold • helps reduce the energy costs of the reaction. • increases the yield of the reaction. • is unchanged at the end of the reaction. • speeds up the rate of the reaction. How many of these statements are correct?

1. A1
2. B2
3. C3
4. D4

As printed in the paper