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प्रश्न
In which compound forms does carbon occur?
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उत्तर
Carbon occurs in the following compounds:
- Hydrocarbons: These are organic compounds which are made up of carbon and hydrogen.
- CO2: Carbon also exists as carbon dioxide and occurs in the air in a free state. it is also found as a salt in chalk and limestone.
- Fossil fuel: coal, petroleum, natural gas.
- Carbonaceous nutrients: carbohydrates, proteins, fats.
- Natural fibres: cotton, wool, silk.
- CH4: Carbon also exists as methane.
APPEARS IN
संबंधित प्रश्न
Choose the correct alternative.
Carbon forms innumerable compounds because
State the term:
The property by which atoms of an element link together to form long chain or ring compounds.
Define the following:
Adsorption
Name the following:
Substances whose atoms or molecules are not arranged in a geometrical pattern.
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 |
Tick the most appropriate answer.
Carbon has a great affinity for
a. sulphur
b. nitrogen
c. oxygen
d. none of these
FILL IN THE BLANK
Natural gas is an important ............. fuel.
TRUE \ FALSE
Organic compounds are soluble in water.
Name a gas which, though a compound of carbon, is not studied under organic chemistry.
Define catenation.
State two characteristic features of carbon which when put together give rise to a large number of carbon compounds.
Explain the ways in which glucose is broken down in absence or shortage of oxygen.
Draw the structures for ethanoic acid.
State how you would convert carbon dioxide to a metallic carbonate using a basic oxide e.g. sodium oxide. [Give a balanced equation]
Give reason for the following:
It is dangerous to stand behind a running engine of a vehicle.
What is carbon monoxide? Why is it toxic?
Answer the following by rearranging the jumbled letters :
In this molecule, carbon is attached to four hydrõgen atoms.
emathen.
