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प्रश्न
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.
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उत्तर
Sulphur dioxide gas dissolves in water to form sulphurous acid.
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संबंधित प्रश्न
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 |
Name the following:
The active component of air which supports combustion and is used up in burning
Name the following:
The product of respiration released in exhaled air, other than carbon dioxide.
List uses of oxygen.
The constituent of air that supports combustion is _____.
List out the uses of nitrogen.
The Scottish chemist ______ discovered carbon dioxide is present in air.
All living things use oxygen for breathing.
______ gas cylinders are used for breathing purpose for a diver going deep into the sea.
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
