Is Matter Around Us Pure — Science STD 9 — Question
Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
MCQ
How is scrap$-$iron separated from other wastes in a scrap yard:
A
Sublimation
✓
Magnetic separation
C
Handpicking
D
Winnowing
✓
Answer
Correct option: B.
Magnetic separation
Waste materials supplied to factories contain a number of scrap metals including iron ore.
So, in factories, scrap iron is separated from the heap of waste materials by using big electromagnets fitted to a crane.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.