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प्रश्न
Carbon dioxide with water changes
विकल्प
blue litmus to red
red litmus to blue
blue litmus to yellow
doesn’t react with litmus
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उत्तर
Blue litmus to red
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Water vapours : Explain their role in modifying the earth’s climate.
Fill in the blank :
________ is the most abundant inert gas present in air.
Briefly state the importance of Carbon dioxide.
Classify Carbon monoxide. Also give a balanced equation to prepare it.
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.
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
Match the statements in List 1 with the correct answers in List 2
| List 1 | List 2 | ||
| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
| 3 | The inert component in the air slightly soluble in water | C | Rare gases |
| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
| 6 | The component of air which finds application in observation balloons | F | Carbon dioxide |
| 7 | The process which involves oxidation of substances, liberating heat and light energy | G | Combustion |
| 8 | The component of air which is heavier than air and fairly soluble in water | H | Nitrogen |
| 9 | The process by which atmospheric carbon dioxide is absorbed by plants resulting in the formation of carbohydrates | I | Photosynthesis |
| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
Composition of the component of air ______ from place to place.
Venus's atmosphere consists of roughly 96 – 97% of ______.
The components of air which are harmful to living beings are ______.
