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प्रश्न
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
पर्याय
Sulphur dioxide gas
Nitrogen dioxide gas
Carbon monoxide gas
Neon gas
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उत्तर
Neon gas
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संबंधित प्रश्न
Name and briefly explain four ways by which pollution of air is caused by humans.
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Sulphur dioxide gas dissolves in water to form ___________ acid.
Tick (√ ) the most appropriate answer.
Magnesium burns with a dazzling white flame to form magnesium oxide, a powdery mass. The colour of magnesium oxide is :
Write ‘true’ or ‘false for the following;
Carbon dioxide is given out during photosynthesis
Name three different appliances where air is utilized.
Give word equation for the following conversion:
Nitrogen of the air to nitric oxide
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
Carbon dioxide with water changes
______ gas cylinders are used for breathing purpose for a diver going deep into the sea.
