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प्रश्न
The most abundant element in the earth’s crust.
उत्तर
Oxygen.
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संबंधित प्रश्न
What is the role of manganese dioxide in the preparation of oxygen?
What happens when mercuric oxide is heated?
How is oxygen naturally renewed in air ?
Fill in the blank:
Manganese dioxide acts as a _________.
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
Give balanced equation to obtain oxygen from Silver oxide.
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.
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.
Write a note on the rusting process.
