Advertisements
Advertisements
प्रश्न
Taking hydrogen peroxide, how would you prepare oxygen in the laboratory ?
Advertisements
उत्तर
Take manganese dioxide in a round bottom flask and add hydrogen peroxide drop by drop to it, which acts ; a catalyst as shown in the figure. Collect oxygen by downward displacement of water.
APPEARS IN
संबंधित प्रश्न
A chemical called oxygenated water.
Two substances which undergo rapid oxidation.
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
Complete and balance the following equation
\[\ce{N2 + O2 ->[3000°C]}\]
Complete and balance the following equation
Al + O2 →
Write ‘True’ or ‘False’ in front of following statement.
Under laboratory conditions, the oxygen gas is insoluble in water.
Write ‘True’ or ‘False’ in front of following statement.
Liquid oxygen is used for burning fuel in spaceships.
Tick (√ ) the most appropriate answer.
Sodium burns in oxygen with a flame which is :
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
