Tollens Test Quiz

What is the primary purpose of the Tollens Test?

• To measure the acidity of a solution

• To determine the concentration of a solution

• To distinguish between aldehydes and ketones

• To identify the presence of carbonyl compounds

Which type of compound gives a positive result in the Tollens Test?

• Ketones

• Esters

• Carboxylic acids

• Aldehydes

What is the main component of Tollens reagent?

• Diamine silver complex

• Sodium hydroxide

• Ammonium chloride

• Silver oxide

What is the first step in preparing Tollens reagent?

• Mixing silver nitrate with water

• Adding sodium hydroxide to silver nitrate

• Adding ammonium hydroxide to silver nitrate

• Heating silver nitrate solution

Why must Tollens reagent be prepared fresh before use?

• It loses its color over time

• It is highly reactive with air

• It has a short shelf life

• It evaporates quickly

What happens to the diamine silver complex during the reaction with an aldehyde?

• It decomposes into ammonia

• It forms a silver nitrate complex

• It is reduced to elemental silver

• It is oxidized to silver oxide

What visual result indicates a positive Tollens Test?

• Formation of a white solid

• Formation of a blue solution

• Formation of a silver mirror

• Formation of a red precipitate

What is the role of a hot water bath in the Tollens Test?

• To dissolve the silver oxide

• To speed up the reaction

• To cool down the reaction

• To neutralize the solution

Which of the following is NOT required for the Tollens Test?

• Ammonium hydroxide solution

• 0.1 molar silver nitrate solution

• Dilute sodium hydroxide solution

• Concentrated sulfuric acid

What can be done with the silver mirror formed in a round bottom flask?

• It can be used to test for ketones

• It can be dissolved in water

• It can be preserved as a showpiece

• It can be used as a catalyst