Advertisements
Advertisements
Question
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
Advertisements
Solution
H2O2 is preferred for lab preparation of oxygen because of following reasons.
- No heating is required.
- The rate of evolution of oxygen (O2) is moderate and under control.
H2O2 is a safe chemical.
APPEARS IN
RELATED QUESTIONS
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
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.
Statement given below is incorrect. Write the correct statement :
Oxygen is prepared in laboratory by treating hydrogen oxide with manganese dioxide.
Statement given below is incorrect. Write the correct statement :
Calcium burns in oxygen with a golden-yellow flame.
Statement given below is incorrect. Write the correct statement :
The oxygen gas turns moist blue litmus red.
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
State any four physical properties of oxygen gas.
Describe what you will observe and write fully balanced equation when the following is introduced in a jar of oxygen.
Burning magnesium
Write fully balanced equation for the following :
Na2O + H2O →
