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Question
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
Options
oxygen
carbon dioxide
nitrogen dioxide
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Solution
The product formed which is common to both combustion and respiration is nitrogen dioxide
RELATED QUESTIONS
Briefly state the importance of Nitrogen.
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 :
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 |
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An inert gas which has a low boiling point and is used for producing very low temperatures
Tabulate the various components of air, including the components with variable composition.
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
“Air is not an elementary substance, but a composition”. Why?
Observe the picture given in Fig. carefully and answer the following questions.
Why is he putting a cover on his nose?
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Carbon dioxide
