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Chemistry CBSE Live product
Class 7 (2025-26)
The World of Metals and Non-metals
Revision III - The World of Metals and Non-metals
6.
Uses of materials
Question:
5
m.
Help
Sara
to select the correct answer for the following:
Match the materials in Column A with their applications given in Column B:
Column A
Column B (Application)
a.
Oxygen
for breathing
for making jewels
for making rails
for making crackers
for disinfecting water
for making electric wires
b.
Copper
for making jewels
for making rails
for disinfecting water
for making crackers
for breathing
for making electric wires
c.
Phosphorus
for making jewels
for making electric wires
for disinfecting water
for making crackers
for making rails
for breathing
d.
Iron
for making crackers
for making electric wires
for making railway tracks
for disinfecting water
for making jewels
for breathing
e.
Chlorine
for making rails
for breathing
for making jewels
for making crackers
for making electric wires
for disinfecting water
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