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.
Neelam Saxena said:
1 decade ago
Yes graphite is used in pencil.
Vinanthi said:
1 decade ago
Graphite is mixed with clay powder to make it hard. Only colour pencils contains lead not normal.
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.
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.
Priya said:
1 decade ago
If pencil writes black due to graphite then which element is used in color pencils.
MUHAMMAD AZAM said:
1 decade ago
Lead is used because it is soft and easy to sharp.
Jay jay said:
1 decade ago
graphite and pencil is having same features.
Arun singh said:
1 decade ago
Its a derivative of diamond and used in pencil and very soft.
Mohan said:
1 decade ago
Its a carbon compound and the graphite is very soft that's why it will easily broken.
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.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers