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प्रश्न
How will you obtain dry oxygen in the laboratory?
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उत्तर
Dry oxygen can be obtained if the gas so collected is passed f over a tower containing drying agents like phosphorus pentaoxide, fused calcium chloride or bubbling the gas through concentrated sulphuric acid. Then the dry gas is collected by downward displacement of mer – cury.
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संबंधित प्रश्न
A chemical called oxygenated water.
An oxide and a carbonate containing oxygen.
Two substances which undergo rapid oxidation.
What is the role of manganese dioxide in the preparation of oxygen?
How is oxygen naturally renewed in air ?
Fill in the blank:
Manganese dioxide acts as a _________.
Fill in the blank:
Oxygen is ___________ to litmus testing.
State two characteristics of Basic oxides.
State three uses of oxygen, other than artificial respiration.
Give reason for the following:
Oxidation of sulphur results in a product which turns moist blue litmus red.
