Question
Chemistry Question on allotropes of carbon
Percentage of lead in lead pencil is
A
zero
B
20
C
80
D
70
Answer
zero
Explanation
Solution
In lead pencil graphite and clay is present, so the percentage of lead is zero.
Percentage of lead in lead pencil is
zero
20
80
70
zero
In lead pencil graphite and clay is present, so the percentage of lead is zero.