Advertisements
Advertisements
Question
The diagrams below represents an experiment to show the presence of a component of air.
- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Solution
- Because if we suck from ‘A’, lime water will be sucked out.
- Because if the air is sucked fast, lime water will also be sucked out.
- Lime water turns milky.
- The reason is the formation of CO2.
- Sulphur dioxide
RELATED QUESTIONS
Name the main components of air.
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
Name the following:
The component of air which is present more in industrial areas.
Give word equation for the following conversion:
Nitric oxide to nitrogen dioxide
What is the source of carbon dioxide in air?
Composition of the component of air ______ from place to place.
______ is the main component of air.
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
Write the reaction of carbon dioxide with lime water.
Boojho took an empty plastic bottle, turned it upside down, and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
(i) Bubbles of air came out from the bottle.
(ii) Some water entered the bottle.
(iii) Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
(iv) No bubbles formed, only water entered the bottle.
Which observations is/are correct?
