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प्रश्न
Write two points of difference in the structures of diamond and graphite.
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उत्तर
| Sl.No | Structure of Diamond | Structure of Graphite |
| 1. | Each carbon atom is joined to four other carbon atoms by strong covalent bonds to form a regular tetrahedron. | Each carbon atom is joined to three other carbon atoms by strong covalent bonds to form flat hexagonal rings. |
| 2. | Compact and rigid structure (hard) |
Layered structure (soft) |
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संबंधित प्रश्न
State whether the following statement is true or false:
Diamond and graphite are the covalent compounds of carbon element (C)
What type of bonds are present in CH4 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:
In forming N2 molecule, .............. electrons are shared by each atom of nitrogen.
Explain the formation of a chlorine molecule on the basis of electronic theory of valency.
State one use of diamond which depends on its 'extraordinary brilliance' and one use of graphite which depends on its being 'black and quite soft'.
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Answer the following question.
What is methane? Draw its electron dot structure. Name the type of bonds formed in this compound. Why are such compounds:
(i) poor conductors of electricity? and
(ii) have low melting and boiling points? What happens when this compound burns in oxygen?
Write an Explanation.
Alkene
Write an Explanation.
Alkyne
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Give an example for each of the following statement.
A compound in which three covalent bonds are formed.
The number of pi-bonds present in benzoic acid molecule are ______.
Which of the following compounds of carbon does not consist of ions?
"Carbon prefers to share its valence electrons with other atoms of carbon or with atoms of other elements rather than gaining or losing the valence electrons in order to attain noble gas configuration." Give reasons to justify this statement.
Carbon can neither form C4- cation nor C4 anion. Why?
