
Which of the following statements is true regarding Tollen's test?
It involves the use of a blue solution.
It is a qualitative test for the presence of aldehyde.
It forms a red precipitate in the presence of reducing sugars.
It is also known as the Benedict's test.

Important Questions on Organic Qualitative Analysis


Which of the following precautions is necessary when performing Fehling's test?

In Fehling's test, the blue solution changes to a brick-red precipitate in the presence of reducing sugars due to the formation of:

Which of the following precautions is NOT necessary when performing Tollen's test?

Which test is used to detect the presence of reducing sugars in a solution?

How many of the below compounds give Fehling solution test?

From the compounds given below, number of compounds which give positive Fehling's test is
Benzaldehyde, Acetaldehyde, Acetone, Acetophenone,Methanal, 4-nitrobenzaldehyde, cyclohexane carbaldehyde.

How many of the following will give a positive tollen's test?
1. Acetone.
2. Formaldehyde
3. Formic acid
4. Acetic acid
5.Benzaldehyde


Choose the CORRECT answer from the options given below:

