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प्रश्न
Starting from carbon dioxide how would you obtain a black particles of carbon.
[Give balanced equations for the same]
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उत्तर
Black particles of carbon : Burning magnesium burns in CO2 making use of oxygen of CO2 producing black carbon particles.
\[\ce{2Mg CO2 -> 2MgO + C}\]
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संबंधित प्रश्न
Fill in the blank
...............is used in making black shoe polish.
How will you collect the gas ?
What steps should be taken to balance carbon dioxide in the atmosphere ?
Match the colunm
| column A | column B |
| 1. A product of incomplete burning | a. Hopcolite |
| 2. Nature of carben monoxide | b. Combustible gas |
| 3. A compound formed by the combination of haemoglobin and carbon monoxide | c. carboxy-haemoglobin |
| 4. A mixture of metallic oxides | d. Carbon monoxide |
| 5. Carbon monoxide | e. Highly poisonous |
FILL IN THE BLANK
Organic compounds have ........ boiling and melting points.
What are hydrocarbons ? Name the two different forms of hydrocarbons.
State how you would convert carbon dioxide to a metallic carbonate using a basic oxide e.g. sodium oxide. [Give a balanced equation]
Give a balanced equation for the following conversion: [In one or two steps]
Carbon dioxide to carbon.
According to the Octet rule, carbon requires ______ electrons to attain the nearest noble gas.
Assertion (A): Carbon monoxide is a toxic gas of carbon.
Reason (R): smoking is a source of carbon monoxide.
