Question

A man took 375ml of water in a beaker and dissolved 2-3 teaspoons of sugar in it and also added half a spoon of powder 'A' to the solution. He kept the solution in a warm place. After a 4-5 hours he observed the smell of alcohol coming from that solution
Here powder 'A' added is of

Answer 1

hey buddy
your question's answer is yeast as it will fermentate sugar..

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Answer 2

The answer to this question is yeast.

It is because the man took 375ml of water in a beaker and dissolved 2-3 teaspoons of sugar in it and also added half a spoon of powder 'A' to the solution.

He kept the solution in a warm place.

After 4-5 hours he observed the smell of alcohol coming from that solution.