Oils and Fats - OLABS

Which product is produced when ghee is heated with crystals of potassium bisulphate?

Acrolein

What is acrolein?

An unsaturated aldehyde

Which one of the following tests is used to determine the presence of seasame oil in a given sample of ghee?

Baudouin test

In which one of the following solvents oils and fats are soluble?

Chloroform

While performing an experiment in the lab, the teacher asked students to detect the presence of seasame oil in the given sample of ghee through Baudouin test. Four students A, B, C and D selected reagents for the Baudouin test which are given in the table. Which student selected the correct reagent?

Conc. HCl and 2% furfural solution in alcohol

What are the decomposition products of fats?

Glycerol and higher fatty acids

Which one of the following reagents is used to test the presence of unsaturation in the given sample of oil or fat?

Huble's reagent

Which one of the following tests is used to determine the degree of unsaturation in the given sample of oil or fat?

Huble's test

Rose red colour appears when vanaspati ghee is subjected to Baudouin test. What does it indicate?

Presence of seasame oil

What is the process of slow oxidation of fats and oils present in the food materials resulting in some bad smelling compounds called?

Rancidity