Chemistry
Hydrogen can be prepared with the metal zinc by using
(i) acid
(ii) alkali
(iii) water
Give an equation in each case.
Related Questions
Which test should be made before collecting hydrogen in a gas jar?
For laboratory preparation of hydrogen, give the following
(a) materials used
(b) method of collection
(c) chemical equation
(d) fully labelled diagram.
Why is nitric acid not used in the preparation of hydrogen?
(a) Name the impurities present in hydrogen prepared in the laboratory.
(b) How can these impurities be removed?