Study the experiment below and answer the questions that follow. The above experiment was carried to study what happens when candle burns in a fixed amount...

      

Study the experiment below and answer the questions that follow.
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The above experiment was carried to study what happens when candle burns in a fixed amount of air. After burning of the candle the NaOH(aq) level in the jar rose(b) and the candle went off.
(i) Why do you think the solution level rose inside the gas jar, filling only a part of it?
(ii) Why did the candle go out after burning only for a while?

  

Answers


Kavungya
(i)The solution inside the gas jar rose to take up the space which was occupied by the active part of air.
(ii)The candle went out because in a fixed amount of air only a part of it was used up called the ‘active air’ with the rest ‘Inactive air’ which doesn’t support combustion.
Kavungya answered the question on March 25, 2019 at 09:22


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