Question

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.

(a) How will she find the nature of the gas?
(b)Write down word equations of all the reactions taking place in this process.​

Answer 1

Question:

Here is an activity given in which Saloni had taken place a piece of burning charcoal and then collected the gas in the test tube.

So, we have to write down the questions of the answer that are follows.

_____________________________

Question (a)

How will she find the nature of the gas?

Answer:

To find the nature of the gas ,add a few drops of water in the test tube containing gas. Now, cover the test tube and shake it well.

After shaking it, test the Solution with the help of blue and red litmus paper.

The solution will turn blue litmus red.

And, it indicates that the solution is acidic.

______________________________

Question (b)

Write down word equations of all the reactions taking place in this process.

Answer:

•When charcoal reacts with oxygen it forms Co2(carbon dioxide) gas.

⠀⠀⠀⠀⠀C + O2 → Co2

(carbon from (oxygen)

charcoal)

•When Carbon dioxide reacts with water it forms carbonic acid, and it turns blue litmus to red.

⠀⠀ Co2 + H2O → H2Co3

(carbon dioxide) (water) (Carbonic acid)

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Hope it's helpful !

Answer 2

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Thus, when carbon(charcoal) burns in air, it forms an acidic oxide called carbon dioxide. The nature of the gas can be found by adding water to the gas in the test tube. And then put some blue litmus solution in the jar. The blue litmus solution turns red, this means that the gas is acidic in nature.

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