Question

3. What is rusting? Demonstrate an activity to show that both air and moisture are
necessary for rusting to take place.​

Answer 1

Answer:

Place clean iron nails in each test-tube. Pour some water in test-tube-1, cork it. Pour water (boiled/distilled) in test-tube-2, add some oil and cork it. ... After 2-3 days we observe that the nails in test-tube 1 rust because they are exposed to air and water both, while nail in test-tube 2 and 3 do not rust.