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प्रश्न
Answer the following question.
Draw methane electron dot structure.
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उत्तर
Electron Dot structure of methane is:
संबंधित प्रश्न
Name the element whose allotropic form is graphite.
In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formulae.
What is the general name of all the compounds made up of carbon and hydrogen?
Choose the correct alternative
The process by which decayed plants slowly convert into coal is called.
What is a fire extinguisher ? What is the substance used in the modern type of fire extinguishers ? How is it an improvement over the soda acid-type and the foam-type fire extinguishers ?
State three ways by which carbon dioxide gas is added into 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 |
Tick the most appropriate answer.
Each molecule of Buckminster fulierene contains 60 atoms of carbon arranged as balls consisting of 12 pentagons and
a. 20 hexagons
b. 30 hexagons
c. 40 hexagons
d. 50 hexagons
FILL IN THE BLANK
Organic compounds have ........ boiling and melting points.
What is the atomic number of carbon ?
Write three chemical properties of carbon.
Carbon dioxide occurs both in the free state and in the combined state.
State three methods how carbon dioxide is added to the atmosphere.
Name the following:
The gaseous product obtained when carbon monoxide is passed over heated iron [III] oxide.
Give a balanced equation for the following conversion: [In one or two steps]
Coke to water gas.
Give a reason for the following:
Carbon monoxide and not carbon dioxide, is a highly poisonous gas.
Carbon exists in the atmosphere in the form of ______.
Elemental carbon undergoes ______ reaction at room temperature.
Carbon monoxide displaces ______ from hemoglobin.
