Advertisements
Advertisements
Question
How will you obtain dry oxygen in the laboratory?
Advertisements
Solution
Dry oxygen can be obtained if the gas so collected is passed f over a tower containing drying agents like phosphorus pentaoxide, fused calcium chloride or bubbling the gas through concentrated sulphuric acid. Then the dry gas is collected by downward displacement of mer – cury.
APPEARS IN
RELATED QUESTIONS
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
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 space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
The nitric oxide gas reacts with the oxygen and water vapour to form ______ vapour.
Statement given below is incorrect. Write the correct statement :
The oxygen gas turns moist blue litmus red.
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
Tick (√ ) the most appropriate answer.
Sodium burns in oxygen with a flame which 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 the reaction of oxygen with non–metals.
