Advertisements
Advertisements
प्रश्न
State the precautions while preparing oxygen in the labo-ratory.
Advertisements
उत्तर
The various precautions are :
- Donot collect the first-few bubbles of the gas produced as it is the air in the delivery tube which is driven out
- Method of collection of gas should be appropriate Arundeep’s M.S. Chemistry-7th 126
- Keep all inflammable and bummg apparatus away as oxygen is j a supporter of conbustion.
APPEARS IN
संबंधित प्रश्न
A chemical called oxygenated water.
Two substances from which oxygen can be obtained at a large scale.
Two substances which undergo rapid oxidation.
What is the role of manganese dioxide in the preparation of oxygen?
What happens when mercuric oxide is heated?
Fill in the blank:
Manganese dioxide acts as a _________.
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
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.
Mention the physical properties of oxygen.
