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प्रश्न
The natural way of adding oxygen to air which involves green plants is called
पर्याय
photosynthesis
respiration
burning
dissolution
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उत्तर
photosynthesis
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संबंधित प्रश्न
The most abundant element in the earth’s crust.
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
Give four uses of oxygen.
Fill in the blank:
Oxygen is ___________ to litmus testing.
Complete and balance the following equation
\[\ce{N2 + O2 ->[3000°C]}\]
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
The nitric oxide gas reacts with the oxygen and water vapour to form ______ vapour.
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
State any four physical properties of oxygen gas.
Write fully balanced equation for the following :
SO2 + H2O →
Oxygen is a poor conductor of heat and electricity.
