Question

Observe the experimental setup and answer the following questions. 

(1) Which process do we know with the help of this experiment ? 

(2) How does this process differ from respiration ? 

(3) What are the similarities between this process and respiration ? 

(4) How do you detect the presence of CO₂?

Answer 1

(1) Combustion. 

(2) Respiration occurs in controlled way in the presence of water whereas combustion takes place in the absence of water which an a uncontrolled process. 

(3) In both processes energy is liberated. 

(4) CO₂ turns lime water milky.