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 10 of 13.
Jaspal dudi said:
1 decade ago
We write by the pencil on paper then pencil slide on paper than we write any sentence. It mains we need a sliding metal. Graphite is a sliding metal. So graphite is use in pencil.
Gaurav Wankhade said:
1 decade ago
Pencil manufacturing. The top sequence shows the old method that required pieces of graphite to be cut to size; the lower sequence is the new, current method using rods of graphite and clay.
Neha said:
1 decade ago
Graphite is the allotropes of carbon. It is black and soft.
V.s.shabarish said:
1 decade ago
As we all know carbon is a black element and the graphite is the softest allotropes of carbon. If you try. To break a pencil you will find the middle black part (graphite).
Easily breaks it makes impression on light surface it imparts carbon to the surface of paper therefore graphite is used in pencil.
Easily breaks it makes impression on light surface it imparts carbon to the surface of paper therefore graphite is used in pencil.
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.
Mohan said:
1 decade ago
Its a carbon compound and the graphite is very soft that's why it will easily broken.
Arun singh said:
1 decade ago
Its a derivative of diamond and used in pencil and very soft.
Jay jay said:
1 decade ago
graphite and pencil is having same features.
MUHAMMAD AZAM said:
1 decade ago
Lead is used because it is soft and easy to sharp.
Priya said:
1 decade ago
If pencil writes black due to graphite then which element is used in color pencils.
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