GK
BASIC GENERAL KNOWLEDGE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The element used in lead pencils is
|
|
Carbon
|
|
|
Tin
|
|
|
Lead
|
|
|
Magnesium
|
Explanation:
Detailed explanation-1: -The “lead” in a pencil isn’t actually made from lead. It is made from a form of carbon called graphite. The graphite is mixed with clay and formed into long thin pencil lead.
Detailed explanation-2: -This may come as a shock to some people but lead pencils do not contain any lead. Never did. The “lead” actually is a mixture of graphite and clay; the more graphite, the softer and darker the point.
Detailed explanation-3: -The core of lead pencil is made up of thin graphite which is enclosed in a shell of some other material which is made up of wood, plastic or recycled paper. So, lead pencil is made up of graphite powder which is an allotrope of carbon and not of lead metal.
There is 1 question to complete.