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Why is Diamond Used for Making Cutting Tools (Like Glass Cutters) but Graphite is Not? - Science

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प्रश्न

 Why is diamond used for making cutting tools (like glass cutters) but graphite is not?

उत्तर

Diamond is the hardest, naturally occuring material known. Owing to its rigid structure, it can be used as glass cutters. Whereas graphite is a layered structure of carbon atoms and is very soft so, it cannot be used for making cutting tools.

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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 25.2 | पृष्ठ २२१

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

List three characteristic properties of covalent compounds.


What would be the electron dot structure of carbon dioxide which has the formula CO2?


Ethane, with the molecular formula C2H6 has ______.


Choose the most appropriate answer from the following list of oxides which fit the description.

A covalent oxide of a metalloid.


Explain why, diamond can be used in rock drilling equipment but graphite cannot.


You can buy solid air-freshners in shops. Do you think these substance are ionic or covalent? Why?


State the type of bonding in the following molecule.

Methane


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.


Choose and write the correct option.

Which type of carbon-carbon bonds are present in Vanaspati ghee?


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


What do you understand by lone pair and shared pair?


Explain the following:
Covalent compounds have low melting and boiling point.


Choose the correct answer from the options given below 
Which one is not example of polar covalent compound?


Fill in the blank from the choice given in bracket.
The compound that does not have a lone pair of electrons is ___________. (Water, Ammonia, carbon tetrachloride)


Electrons are getting added to an element Y: 

Is Y getting oxidised or reduced?


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?


Define the functional group and complete the following table. 

S.I. No. Functional Group Compound Formula
(1) ______________ _______________

C2H5OH

(2) _______________ _______________ CH3CHO

Write scientific reason.

Benzene compounds are called aromatic compounds.


Acetic acid was added to a solid X kept in a test tube. A colourless, odourless gas Y was evolved. The gas was passed through lime water, which turned milky. It was concluded that ______.


Mineral acids are stronger acids than carboxylic acids because

  1. mineral acids are completely ionised
  2. carboxylic acids are completely ionised
  3. mineral acids are partially ionised
  4. carboxylic acids are partially ionised

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