Question

12. a) Carbon dioxide produced by heating sodium hydrogen carbonate is dry whereas that
produced by the action dilute hydrochloric acid on sodium hydrogen carbonate is moist.
What do you think about the difference in the composition of carbon dioxide in the two
cases?

Answer 1

Answer:

The difference is that there is water present in the hydrochloric acid and so water vapour is given off, thus dding a second gas to the mixture. This occurs even more often because the readtion is hot and thus more watwr evaporates from the acid.

Carbon dioxide produced by acid thus is impure as it is tainted water.

water is not present in calcium carbonate and thus when heated only carbon dioxide is produced and a pure product is formed. The by product is calcium hydroxide.

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Answer 2

कार्बन डाइऑक्साइड इस प्रोड्यूस्ड बाय एसिड एक्टिवाइट्स टिटेनिक एसिड