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प्रश्न
Choose the correct alternative
Lamp black is
पर्याय
an amorphous form of carbon
a crystalline form of carbon
a pure form of carbon
a cluster of carbon atoms
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उत्तर
an amorphous form of carbon
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संबंधित प्रश्न
Write the balanced chemical equations for the preparation of carbon dioxide by:
the action of dilute sulphuric acid on sodium bicarbonate.
Give reason for the following:
Soda acid and foam types of fire extinguisher are not used for extinguishing electrical fires.
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
.................... is the main gaseous compound of carbon.
FILL IN THE BLANK
Organic compounds have ........ boiling and melting points.
Answer the following question.
What is methane?
State how carbon occurs in the free state and in the combined state.
Give a balanced equation for the following conversion: [In one or two steps]
A metallic oxide to calcium carbonate.
According to the Octet rule, carbon requires ______ electrons to attain the nearest noble gas.
Which among the following compound is soluble in water?
