Question

The diagrams below represents an experiment to show the presence of a component of air.

1. State why air is sucked from – outlet ‘B’ and not from outlet “A”
2. State why the air is sucked ‘slowly’ from the outlet “B”
3. State the observation seen after completion of the experiment.
4. State the reason for the above observation seen.
5. Name another component which if present in air as a pollutant would have given a similar observation

Answer 1

1. Because if we suck from ‘A’, lime water will be sucked out.
2. Because if the air is sucked fast, lime water will also be sucked out.
3. Lime water turns milky.
4. The reason is the formation of CO₂.
5. Sulphur dioxide