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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.
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संबंधित प्रश्न
Which of the following molecule is called buckministerfullerene?
C90 C60 C70 C120
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
.................. are the compounds of hydrogen and carbon only.
What is the atomic number of carbon ?
What is hydrocarbon? Give its one example.
All the carbon bonds in a saturated hydrocarbon ______ electrons.
Draw the structures for ethanoic acid.
Answer the following question.
Why are methane compounds have low melting and boiling points?
How would you prove experimentally that is slightly acidic in nature.
Starting from carbon dioxide how would you obtain a weak acid.
[Give balanced equations for the same]
Explain the term ‘dry ice’. State its application.
Give reason for the following:
It is dangerous to stand behind a running engine of a vehicle.
Fossil fuels are obtained from
Explain the carbon cycle or biogeochemical cycle.
The ability of carbon to form ______ is the main reason for the formation of various classes of carbon compounds.
Carbon monoxide displaces ______ from hemoglobin.
Which among the following compound is soluble in water?
Assertion (A): Carbon monoxide is a toxic gas of carbon.
Reason (R): smoking is a source of carbon monoxide.
Answer the following by rearranging the jumbled letters :
In this molecule, carbon is attached to four hydrõgen atoms.
emathen.
Answer the following by rearranging the jumbled letters :
Carbon combines with other elements through the _______ bond.
lnaocvet.
