Chemistry
Steam can react with a metal and a non-metal to liberate hydrogen. Give the necessary conditions and equations for the same.
Related Questions
Based on the reactions of water on metals, arrange the following metals in increasing order of reactivity: Iron, sodium, magnesium, zinc, calcium.
Hydrogen is evolved when dilute HCl reacts with magnesium, but nothing happens in the case of mercury and silver. Explain.
Hydrogen is obtained by displacement from
(a) dilute sulphuric acid
(b) dilute hydrochloric acid
Write equations using zinc and iron.
Why does not copper show similar behaviour?
Give a reason for the following
(a) Though lead is above hydrogen in the activity series, it is not used to prepare hydrogen.
(b) Potassium and sodium are not used for reaction with dilute hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.