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प्रश्न
Solvay process is a method to manufacture
पर्याय
lime water
aerated water
distilled water
sodium carbonate
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उत्तर
Sodium carbonate
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संबंधित प्रश्न
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
Write ‘True’ or ‘False’ in front of following statement.
The area where a lot of fuel burns has more percentage of carbon dioxide.
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
What are fuels?
Give two examples of modern fuels.
Name the components of air with their approximate percentage by volume in air. Does the percentage by volume of each component remain the same, in the atmosphere of different parts of the world? Explain with reasons.
How do astronauts breathe when they go beyond the earth’s atmosphere?
All living things use oxygen for breathing.
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
