What is the percentage of lead in a lead pencil (in $,\%$)?
- A$0$
- B$20$
- C$80$
- D$70$
Explore More
Similar Questions
$A$ circle with center at $(2,4)$ is such that the line $x+y+2=0$ cuts a chord of length $6$. The radius of the circle is
Which of the following reagents reacts with benzaldehyde to produce $1$-phenylethanol?
Celestite is a mineral of which of the following?
Phosgene is formed slowly from which one of the following on exposure to air and sunlight?
Identify the logic operation performed by the following circuit.
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo