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प्रश्न
what substance is graphite made?
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उत्तर
On burning graphite in the presence of oxygen, only carbon dioxide gas is evolved proving that graphite is only made of carbon.
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संबंधित प्रश्न
Name the following:
The property of element by virtue of which atoms of the element can link to each other in the form of a long chain or ring structure.
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
Give one example of a molecule containing a triple covalent bond.
Fill in the blank in the following sentence:
Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.
What is buckminsterfullerene?
Name one covalent compound containing chlorine.
How will you find out which of the water soluble compound A or B is ionic?
Give the formula of the compound that would be formed by the combination of the following pair of elements:
Al and Cl2
Which inert gas does the Cl atom in HCl resemble in electron arrangement?
What is diamond? Of what substance is diamond made?
Give the characteristic properties of covalent compounds.
Explain the following term with example.
Covalent bond
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
The molecular masses of a carbon compound spread over a range of _______.
Write scientific reason.
Benzene compounds are called aromatic compounds.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
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______ is an example of a covalent compound having a high melting point.
State the reasons, why carbon cannot
- Lose four electrons to form C4+ cation and
- Gain four electrons to form C4- anion.
How does carbon overcome this problem to form compounds?
The electron dot structure of chlorine molecule is:
