10. Ramesh was absent when the teacher explained the activity to demonstrate that CO2 is given out during respiration. The very next day he was having an exam. So he approached his friend Rajesh and
asked the following questions.
(i) What does the rising of water level indicate?
(ii) What is the significance of KOH in the experiments?
(iii) Where does the air move from the bent tube? Rajesh explained the answers to the above questions and told him to be regular in class. Ramesh understood the topic.
Write answers for the above questions and value shown by Rajesh
Answers
Answer:
i ) The rise of water level in the bent tube indicates that Carbon Dioxide gas is released. The water level rises due to a vacuum pressure created by the Carbon Dioxide gas in the bent tube.
ii ) KOH in the experiment is used for absorbing the Carbon Dioxide gas released by the plant during this experiment. By absorbing the gas, it creates a vacuum due to which the water level rises in the bent tube.
iii ) The air in the bent tube moves towards the conical flask due to which vacuum is created and the water level rises.
The values exhibited by Rajesh are Kindness, Helping Tendency and Good Friendship between them.
Hope it helped !!
Answer:
10. Ramesh was absent when the teacher explained the activity to demonstrate that CO2 is given out during respiration. The very next day he was having an exam. So he approached his friend Rajesh and
asked the following questions.
(i) What does the rising of water level indicate?
(ii) What is the significance of KOH in the experiments?
(iii) Where does the air move from the bent tube? Rajesh explained the answers to the above questions and told him to be regular in class. Ramesh understood the topic.
Write answers for the above questions and value shown by Rajesh