Explain two ways by which food industries prevent rancidity.
(b) discuss the importance of decomposition reaction in metal industry with three points.
Answers
a). food industries prevent rancidity in the following two ways :
1. flush the packets of food items with nitrogen .
2. storing the food item in air tight containers by taking out the oxygen from the container before packing it .
b). the importance of decomposition reaction on metal industry is as follows ;
1. it helps in extracting metals from their ores .
2. it helps in electrolytic reduction of many compounds .
3. it helps in obtaining metals from their oxide ores .
Answer:
Rancidity is complete (or) incomplete oxidation (or) hydrolysis of fats and oils when exposed to air light moisture loss by bacterial action resulting in an unpleasant taste.
a) 1) It can be presented by adding antioxidants to food containing fat and oil ex hydroxy anisole is added to butter.
2) It can be presented by packing fat and oil containing foods in nitrogen gas.
b) 1) Nolten Nacl is hydroelectrically decomposed to form sodium metal.
2) aluminum metal is obtained by electric decomposition of bauxite (or) mixed with Cryolite
3) Carbonateores are thermally decomposed to give metal oxide which on reduction give metal.
Explanation:
Plz Mark me as Brainliest
Hope it's help you a lot