Question

(i) Why do we store silver chloride in dark
coloured bottles?
(ii) Define rancidity. What kind of substances
are used to prevent rancidity? Explain any
three methods to prevent rancidity.​

Answer 1

Answer:

Answer:Silver chloride is a light-sensitive chemical compound andit easily undergoes photolytic decomposition reaction. Silver chloride decomposes into silver and chlorine gas when exposed to sunlight. Hence Silver chloride is stored in dark-colored bottles.

answer of last question

Rancidity : When the substance containing oils and fats are exposed to air they get oxidised and become rancid due to which their smell, taste and colour change. This process is known as rancidity

Rancidity can be prevented using the following methods:

1.Adding antioxidants (substances which prevent oxidation) to food.

2.Storing food in airtight containers to slow the process of rancidification

3.Refrigerating food also helps to slow down rancidification.

4.Replacing oxygen in the containers with another gas.

Please friend like and give heart

Answer 2

Answer:

Ans- (i) Silver chloride is a light-sensitive chemical compound andit easily undergoes photolytic decomposition reaction. Silver chloride decomposes into silver and chlorine gas when exposed to sunlight. Hence Silver chloride is stored in dark-colored bottles.

Ans-(ii) antioxidants kind of substances are used to prevent rancidity .

1)by adding antioxidants .

2)by refrigerating the food items.

3)by flushing the food with nitrogen gas.