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प्रश्न
Give tests for oxygen gas.
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उत्तर
Tests for oxygen gas are :
- It rekindles glowing wooden splinter.
- If mixed with colourless nitric oxide gas, it forms reddish brown fumes of nitrogen dioxide.
- It dissolves in alkaline pyrogallol solution and turns it brown.
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संबंधित प्रश्न
The most abundant element in the earth’s crust.
What happens when a glowing splinter is introduced in a jar containing oxygen ?
Fill in the blank:
Oxygen is slightly _________ than air.
Fill in the blank:
Manganese dioxide acts as a _________.
Fill in the blank:
Oxygen is ___________ to litmus testing.
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
Tick (√ ) the most appropriate answer.
The catalyst used in the preparation of oxygen from hydrogen peroxide is :
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
Write fully balanced equation for the following :
SO2 + H2O →
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
