A white precipitate can be obtained by adding dilute sulphuric acid to:

49 The term used to indicate the development of unpleasant smell and taste in fat and oil containing foods due to aerial oxidation is: 50 In order to prevent the spoilage of potato chips, they are packed in plastic bags in an atmosphere of : 52 A white precipitate will be formed if we add common salt solution to: 53 Consider the following equation of the chemical reaction of a metal M:

This equation represents: