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प्रश्न
Two substances from which oxygen can be obtained at a large scale.
उत्तर
Air, water.
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संबंधित प्रश्न
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
How is oxygen naturally renewed in air ?
What happens when Sulphur burns in oxygen ? Also give the balanced chemical equation for the reaction.
What happens when Magnesium burns in oxygen ? Also give the balanced chemical equation for the reaction.
Give balanced equation to obtain oxygen from Silver oxide.
State the use of manganese dioxide in the laboratory prepa-ration of oxygen from potassium chlorate.
State two characteristics of Basic oxides.
Statement given below is incorrect. Write the correct statement :
Calcium burns in oxygen with a golden-yellow flame.
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
Phosphorous bums with suffocating smell and gives ______.
