Advertisements
Advertisements
Question
Why is potassium chlorate not used for laboratory preparation of oxygen ?
Advertisements
Solution
Potassium chlorate needs heating for quite sometime (to a high temperature) before it decomposes.
APPEARS IN
RELATED QUESTIONS
Two substances from which oxygen can be obtained at a large scale.
Name the three types of oxidation processes. In which of these large amount of heat and light energy are produced?
Fill in the blank :
____________ discovered the oxygen gas.
Fill in the blank :
Oxygen occupies about _____% of air by volume.
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
Fill in the blank:
Oxygen occupies about ______ of air by volume.
Complete and balance the following equation
Al + O2 →
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Phosphorus pentaoxide on dissolving in water forms _________ acid.
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
Write fully balanced equation for the following :
SO2 + H2O →
