General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 4)
4.
Which of the following is used in pencils?
Discussion:
122 comments Page 9 of 13.
ASHUTOSH MAURYA said:
1 decade ago
Graphite because it is allotropes of carbon, black and soft and NON-METAL and both have same features and slippery in nature so this way GRAPHITE is use for making pencil.
ASHUTOSH MAURYA said:
1 decade ago
As graphite is a hard and non-metal, brittle also allotropes of carbon, and it is black and soft.
Vaishnavi said:
1 decade ago
Graphite is non metal and brittle which breaks easily so it is used in pencils.
Ramkrishna said:
1 decade ago
In old days our ancestors used a type of stone (graphite) to write with and by the help of it they could write anywhere easily. In nowadays it is modalised in the pencil.
Choeyangtsomo said:
1 decade ago
Graphite is semiconductor.
Rajendra kushawah said:
1 decade ago
Graphite is soft material, it is easily Sharp, graphite is semiconductor.
M.mouna said:
1 decade ago
Graphite is slippery in nature and also pencil impurities also slippery in nature, so we are using this graphite in pencil.
Srinivas said:
1 decade ago
Graphite is the allotropes of carbon. It is black and soft.
Muhammad bello said:
1 decade ago
Soft graphite is use to make pencil lead.
Chith said:
1 decade ago
Graphite slides easily on any surface and has a loose carbon structure, so as for it being used in pencils, pencil lead has to be smooth and slide across the paper to write properly. Also, graphite is naturally a very dark grey, almost black colour. The same as pencil lead. Note: Just because we call pencil lead 'lead', it does not literally mean that it is made of lead; that's impossible.
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