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Why is Graphite Used for Making Dry Cell Electrodes but Diamond is Not? - Science

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प्रश्न

Why is graphite used for making dry cell electrodes but diamond is not?

 

उत्तर

Graphite is a good conductor of electricity. Therefore, it is used for making dry cell electrodes. Whereas, diamond does not conduct electricity, as it has no free electrons and all its valence electrons go into the formation of strong covalent bonds.

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पाठ 4: Carbon And Its Compounds - Exercise 1 [पृष्ठ २२१]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 4 Carbon And Its Compounds
Exercise 1 | Q 25.3 | पृष्ठ २२१

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Why covalent compounds are different from ionic compounds?


State the reason to explain why covalent compounds "have low melting and boiling points."


Ethane, with the molecular formula C2H6 has ______.


Name a carbon containing molecule which has two double bonds.


Fill in the blank in the following sentence:

The number of single covalent bonds in C2H2 molecule are ...........


 Explain the formation of a chlorine molecule on the basis of electronic theory of valency.


Give one example, state what are covalent compounds?


Which of the following cannot exhibit isomerism?
(a) C4H10
(b) C5H12
(c) C3H8
(d) C6H14


The pencil leads are made of mainly:
(a) lithium
(b) charcoal
(c) lead
(d) graphite


The electronic configurations of two elements A and B are given below:

A 2, 6
B 2, 8, 1

(a) What type of chemical bond is formed between the two atoms of A?
(b) What type of chemical bond will be formed between the atoms of A and B?


What do you understand by polar covalent compounds?


Give examples for the following:
Two liquid non polar compounds.


Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.


Element A has 2 electrons in its M shell. Element B has atomic number 7.

Write equations to show how A and B form ions.


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)

 

Which of the following statements are usually correct for carbon compounds? These

  1. are good conductors of electricity
  2. are poor conductors of electricity
  3. have strong forces of attraction between their molecules
  4. do not have strong forces of attraction between their molecules.

Molecular reactions are ______ in the covalent compound.


In covalent compounds, the bond is formed due to ______ of electrons.


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