Question

Rancidity

When the food materials prepared in fats and oils are kept for a long time, they

start giving unpleasant smell and taste. The fat and oil containing food materials

which gives unpleasant smell and taste are said to have become rancid(sour and

stale. This condition is called rancidity, it is also called ‘Vikritgandhita’ in Hindi.

The fats and oils present in food get oxidized and form products which give

unpleasant smell and taste

Q5 a) Rancidity is caused by

1Anaerobic oxidation

2 Aerial oxidation

3 both aerial and anaerobic oxidation

4 None of these

Q5 b) Anti oxidants are basically

1 oxidising agent

2 reducing agent

3 Enzymes

4 Catalysts

Q5 c) Beside rancidity ,the commoneffect of oxidation we observe in daily life is

1 Precipitation

2 Decomposition

3 Colour change

4 Corrosion

Q5 d) The addition of non metallic element to any substance is also known as
1 Displacement

2 Oxidation

3 Reduction

4 None of these

Q5 e) A reducing agent undergoes :

1 reduction

2 Oxidation

3 Both Oxidation and reduction

4 Non e of these ​

Answer 1

Answer:

Rancidification is the process of complete or incomplete oxidation or hydrolysis of fats and oils when exposed to air, light, or moisture or by bacterial action, resulting in unpleasant taste and odor.

Explanation:

it help u

Answer 2

Answer:

Agriculture is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities.