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प्रश्न
Fill in the blank :
____________ discovered the oxygen gas.
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उत्तर
Joseph Priestly discovered the oxygen gas.
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संबंधित प्रश्न
What is the role of manganese dioxide in the preparation of oxygen?
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Oxygen occupies about _____% of air by volume.
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Oxygen is slightly _________ than air.
State two characteristics of Acidic oxides.
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.
Statement given below is incorrect. Write the correct statement :
Calcium burns in oxygen with a golden-yellow flame.
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
Give tests for oxygen gas.
Mention the physical properties of oxygen.
Write the reaction of oxygen with non–metals.
