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:
121 comments Page 4 of 13.
Akila said:
1 decade ago
The central lead of pencil is made of graphite which is black, soft and hence makes markable impressions on the paper.
Dane said:
9 years ago
I agree with you @Lily.
The graphite has van der Waals forces between its layers and this makes it soft when writing.
The graphite has van der Waals forces between its layers and this makes it soft when writing.
Vishal said:
1 decade ago
Graphite is a soft black colour non metal which we can write easily on the graph paper or any surface of the things.
Srinivas rao said:
8 years ago
Graphite is a form of carbon and it is more reacted with the paper and it attached to it So, we can write smoothly.
Parish mishra said:
1 decade ago
Graphite structure is hexagonal and it is build in layer which can slip in surface so it is used for pencil.
S.v. prasad said:
1 decade ago
Yes pencil made from Graphite. Many thought that it was made by led. Because we called it as pencil lead.
RUPACE SHAH said:
1 decade ago
Its a non metal but good conductor of electricity and it is made of triple bond and three dimensonal.
Hamza saleem said:
10 years ago
Because the pencil have to leave a grey mark on the page that's why the graphite used in the pencil.
Vinanthi said:
1 decade ago
Graphite is mixed with clay powder to make it hard. Only colour pencils contains lead not normal.
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.
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