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प्रश्न
What is graphite?
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उत्तर
Graphite is an allotrope of carbon, and is a soft, greyish black and opaque substance. The graphite is made up of carbon atoms
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संबंधित प्रश्न
State the reason to explain why covalent compounds "are bad conductors of electricity".
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
What type of chemical bond is formed between carbon and bromine?
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
What is a covalent bond?
Give two general properties of ionic compounds and two those of covalent compounds.
Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity.
Which inert gas does the H atom in HCl resemble in electron arrangement?
Buckminsterfullerene is an allotropic form of the element:
(a) phoshorus
(b) fluorine
(c) carbon
(d) sulphur
Elements forming ionic compounds attain noble gas electronic configuration by either gaining or losing electrons from their valence shells. Explain giving reason why carbon cannot attain such a configuration in this manner to form its compounds. Name the type of bonds formed in ionic compounds and in the compounds formed by carbon. Also explain the reason why carbon compounds are generally poor conductors of electricity.
Explain the following:
Covalent compounds have low melting and boiling point.
The electronic configuration of N2 is 2, 5. How many electrons in the outer shell of a N atom are not involved in the formation of a nitrogen molecule?
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
Draw an electron dot diagram to show the formation of the following compound.
Methane
Name gas with a rotten egg smell.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \phantom{..}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C- C- H}\\ \phantom{.}|\phantom{....}|\phantom{....}|\\ \ce{H - C - H}\\ |\\\ce{H}\end{array}\] |
The number of pi-bonds present in benzoic acid molecule are ______.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ______.
Name the following:
\[\ce{CH3 - CH2CH = CH2}\]
