Question

Half a spoon of yeast powder was added to the sugar solution and it was kept in a warm place for 4-5 hours. What happens after a few hours?

Answer 1

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After adding the water, in the a beaker when we add the sugar, it makes a sugar syrup. After that we will add some yeast in it and keep it for 3-4 hours. The process that will occur in this time is known as fermentation (Fermentation produces the alcohol and we can smell the pungent smell of the ethanol). This is the process that is used to form the alcohol for the drinking purpose as well which is a pure base.

       

       Sugar ⇒ Alcohol + Energy

Answer 2

Answer:

When half a spoon of yeast powder was added to the sugar solution and kept in a warm place for 4-5 hours, fermentation process will take place.

Explanation:

• First, yeast powder is added to the sugar solution and kept aside in a warm place for 4-5 hours.

• In this time, anaerobic respiration takes place, which breaks down the sugar (C6H12O6) molecule and at the end of the process, carbon dioxide (CO2), alcohol (C2H5OH) and energy are formed.

• C6H12O6 → 2C2H5OH + 2CO2 + Energy

• This process is called fermentation.
• This process is used in breweries and bakeries to make wine, alcohol, beers, breads, yogurt, etc.

To know more about aerobic and anaerobic respiration difference,

https://brainly.in/question/1274581

To learn more about alcoholic and lactic acid fermentation,

https://brainly.in/question/7744344

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