answersLogoWhite

0

Ammonia is used as a ligand in order to dissolve the insoluble Silver ions under alkaline conditions.

User Avatar

Wiki User

12y ago

What else can I help you with?

Continue Learning about Chemistry

How is tollens reagent prepared in molecular formula?

Tollens reagent, a solution of silver nitrate (AgNO3), ammonia (NH3), and sodium hydroxide (NaOH), can be represented by the formula [Ag(NH3)2]+. To prepare Tollens reagent, silver nitrate is mixed with ammonia until the precipitate dissolves, and then sodium hydroxide is added to form the [Ag(NH3)2]+ complex ion.


What are the components of tollens reagent?

Tollens reagent is composed of silver nitrate solution, ammonia solution, and sodium hydroxide solution. Silver ions in the solution are reduced to silver metal, forming a silver mirror on the inside of a test tube when aldehydes are present.


Why Tollens reagent does not react with ketone?

Tollens reagent is a mild oxidizing agent that reacts with aldehydes to produce a silver mirror. Ketones, however, do not have a hydrogen atom bonded to the carbonyl group, making them resistant to oxidation by Tollens reagent. As a result, ketones do not react with Tollens reagent.


What is the reaction of acetone and tollens reagent?

Acetone does not react with Tollens' reagent (ammoniacal silver nitrate solution) because it does not contain an aldehyde group, which is necessary for the Tollens' test to occur. Tollens' reagent reacts with aldehydes to produce a silver mirror on the inner surface of the test tube.


What is the oxidation number of ag in tollens reagent?

The oxidation number of silver (Ag) in Tollens' reagent (Ag(NH3)2+) is +1. This is because the overall charge of the complex ion is +1, and each ammonia molecule is neutral, leaving the silver ion with a +1 charge.

Related Questions

How is tollens reagent prepared in molecular formula?

Tollens reagent, a solution of silver nitrate (AgNO3), ammonia (NH3), and sodium hydroxide (NaOH), can be represented by the formula [Ag(NH3)2]+. To prepare Tollens reagent, silver nitrate is mixed with ammonia until the precipitate dissolves, and then sodium hydroxide is added to form the [Ag(NH3)2]+ complex ion.


What are the components of tollens reagent?

Tollens reagent is composed of silver nitrate solution, ammonia solution, and sodium hydroxide solution. Silver ions in the solution are reduced to silver metal, forming a silver mirror on the inside of a test tube when aldehydes are present.


Why Tollens reagent does not react with ketone?

Tollens reagent is a mild oxidizing agent that reacts with aldehydes to produce a silver mirror. Ketones, however, do not have a hydrogen atom bonded to the carbonyl group, making them resistant to oxidation by Tollens reagent. As a result, ketones do not react with Tollens reagent.


What is the reaction of acetone and tollens reagent?

Acetone does not react with Tollens' reagent (ammoniacal silver nitrate solution) because it does not contain an aldehyde group, which is necessary for the Tollens' test to occur. Tollens' reagent reacts with aldehydes to produce a silver mirror on the inner surface of the test tube.


What is the oxidation number of ag in tollens reagent?

The oxidation number of silver (Ag) in Tollens' reagent (Ag(NH3)2+) is +1. This is because the overall charge of the complex ion is +1, and each ammonia molecule is neutral, leaving the silver ion with a +1 charge.


Does tollens reagent react with cyclohexanone?

Yes, Tollens' reagent can react with cyclohexanone. Tollens' reagent is commonly used to test for the presence of aldehydes, including cyclohexanone, by forming a silver mirror when the aldehyde is present.


Is fructose gives positive test with tollens reagent?

Fructose does not give a positive test with Tollens' reagent because it is a reducing sugar that does not have a free aldehyde group capable of reducing the Tollens' reagent. Tollens' reagent is typically used to detect the presence of aldehydes but may not react with fructose due to its ketone functional group.


Why can't you prepare and store tollens' reagent in advance for tests?

Tollens' reagent is made by mixing two solutions - silver nitrate and ammonia - right before use because the reaction is sensitive to light, air, and temperature, which can degrade the reagent quickly. Preparing it in advance may lead to a loss of effectiveness, affecting the results of tests. Therefore, it is best to prepare Tollens' reagent fresh when needed for accurate testing.


Why pyrrole-2-aldehyde does not respond to tollens reagent?

Pyrrole-2-aldehyde does not respond to Tollens reagent because it is not a reducing sugar. Tollens reagent (silver nitrate) is used to test for the presence of aldehyde groups, which are commonly found in reducing sugars. Reducing sugars contain aldehyde groups and are capable of donating electrons to Tollens reagent, forming a silver mirror on the test tube wall. Pyrrole-2-aldehyde does not contain aldehyde groups, and therefore is not a reducing sugar. As a result, it does not react with Tollens reagent.


How do you prepare tollen reagent?

To prepare Tollens reagent, mix aqueous silver nitrate with ammonia solution until a precipitate forms. Then add sodium hydroxide solution to redissolve the precipitate and form the final reagent. It is used to test for the presence of aldehydes in a reaction.


What is the equation for sucrose and tollens reagent?

The reaction between sucrose and Tollens' reagent results in the formation of a silver mirror. The equation for this reaction is: C12H22O11 (sucrose) + 2Ag(NH3)2OH (Tollens' reagent) → 12Ag (s) + CO2 (g) + H2O (l) + 22NH3 (aq)


What is formula of tollens reagent?

2[Ag(NH3)2]OH is tollen's reagent