(a)[5]
Substances X, Y and Z are tested. Complete the table.
(b(i))[1]
Name the gas given off when Z reacts with dilute hydrochloric acid.
(b(ii))[2]
State a test and observation that identify this gas.
Chemistry 5070 · O Level · Reactivity series
Reactivity series — practice question
X is a colourless solution containing an oxidising agent. Y is a colourless solution containing a reducing agent. Z is a metal that lies between iron and calcium in the reactivity series.