Category: O-level chemistry

Preparation of hydrogen

07/11/2020 0

procedure of preparation of hydrogen and worked examples Read More

Preparation of oxygen with worked examples

07/08/2020 0

principles of preparation of gases i.e. preparatory state, purification stage, drying stage, and collection stage. Preparation oxygen, sample questions and answers Read More

Preparation of gases

06/24/2020 0

Stages of gas preparation, preparation of oxygen, testing for oxygen Read More