Question

A student notices that the bread kept out has a green colored coating over it after a few

days.

What explains the reason for the student’s observation?

(a) the oils in the bread oxidizes and causes rancidity

(b) bread comes in contact with atmospheric moisture and corrodes

(c) the oils in the bread reduces and cause the change in the color of the bread

(d) comes in contact with the atmospheric nitrogen and a layer deposit over it​

Answer 1

Answer:

a

Explanation:

Its option (a)

Rancidity

Answer 2

A student notices that the bread kept out has a green colored coating over it after a few  days. Option (a) the oils in the bread oxidizes and causes rancidity explains the reason for the student’s observation.

Explanation:

• Complete or partial oxidation of  fats and oils present in the food products leads to the development of unpleasant odour. This condition is called as rancidity.
• Food items like bread, chips, etc., have fat and oil in them.
• When they are exposed to air/moisture, it results in the oxidation.
• As a result, unpleasant taste and smell are formed in the food items.
• Hence, option (a) is the correct answer.