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प्रश्न
Solvay process is a method to manufacture
विकल्प
lime water
aerated water
distilled water
sodium carbonate
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उत्तर
Sodium carbonate
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Tick (√) the most appropriate answer.
The humans pollute the air by :
What do you understand by the term polluted air?
Name the main component of air.
What is the presence of harmful substance in the air called?
When air is moving with cool and soothing, it is called a cyclone.
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
“Air is not an elementary substance, but a composition”. Why?
Nitrogen is about two times more soluble in water than oxygen.
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain ______.
