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प्रश्न
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
विकल्प
dazzling white
golden yellow
parrot green
brilliant blue
उत्तर
brilliant blue
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संबंधित प्रश्न
Fill in the blank :
Oxygen occupies about _____% of air by volume.
Complete and balance the following equation
S + O2 →
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 :
Moist oxygen causes rusting in carbon.
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 :
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 →
State three uses of oxygen, other than artificial respiration.
Give tests for oxygen gas.
