This question is about metals.
a)
Metals can be arranged in a reactivity series based on their reactions with water and their reactions with dilute hydrochloric acid.
The table shows how four metals, P, Q, R and S, react with water and with dilute hydrochloric acid.
Metal |
Reaction with water |
Reaction with dilute hydrochloric acid |
P |
no reaction |
hydrogen gas forms very slowly |
Q |
no reaction |
no reaction |
R |
hydrogen gas forms very quickly |
not done |
S |
hydrogen gas forms quickly |
hydrogen gas forms very quickly |
i)
Identify which of the metals P, Q, R or S could be gold.
(1)
ii)
Suggest why the reaction between metal R and dilute hydrochloric acid was not done.
(1)
iii)
Use the information in the table to place the metals in order of reactivity from most reactive to least reactive.
(1)