Question

half fill a test tube with silver nitrate solution observe the appearance of the solution?​

Answer 1

Answer:

In this experiment, students observe what happens when a solution containing silver nitrate (Tollens' reagent) and a reducing sugar

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Answer 2

Answer:

The teacher demonstration should take 5 minutes to perform. There are also possible extension activities, each of which would take a similar time.

Although the reaction involved is related to the post-16 study of aldehydes and reducing sugars, this dramatic demonstration will fascinate a wider age range.

The reaction may also be used on a small-scale as a student experiment for post-16 advanced studies in chemistry – see Teaching notes below