What is rancidity of oils and fats?

What is rancidity? Mention only two ways by which rancidity can be prevented.

What acids are responsible for rancidity of milk and butter ?

Fat is abundant in

A layer of oil 3 cm thick is flowing on a layer of coloured wtater 5 cm thick. Refractive index of coloured water is (5)/(3) and the apparent depth of the two liquids appears to be (36)/(7) cm . What is the refractive index of oil?

What are causes of rancidity ?

State whether the following statements are true or false. When oils and fats are allowed to stand for a long time, they become rancid.

What are the main ingredient of vegetable oils and milk fats?

Answer the following questions : What is the type of this reaction , in which vanaspathi ghee is formed from vegetable oil?

What is RQ? What is its value for fats?

Why do edible oils show rancidity when stored for long period?