Question

1. (a) Explain two ways by which food industries prevent rancidity.
(b) Discuss the importance of decomposition reaction in
in metal industry with
three
points.
​

Answer 1

Answer:

1. Food industries store the products under refrigeration or make the food stored in an airtight container.

• they remove air and fill the package with hydrogen which does not spoil the food.

2.When the decomposition reaction carried by sunlight is called sunlight decomposition. Electrolytic is used in the extraction of metal from their naturally occurring compounds, generally chloride and Oxides. Thermal decomposition is used for the production of CaO (Calcium Oxide).

Answer 2

Answer:⬇️⬇️

➡️1. ●to prevent rancidity substances which prevent oxidation are added to foods containing fats and oil.

●foods are kept in air tight containers.

●bags of chips are flushed with nitrogen to prevent them from getting oxidised.

➡️2. in decomposition reaction a single reactant breaks down to give simpler products.in metal industry decomposition reaction is used for extraction of metal from its oxides,sulphide,effects. through electrolysis.thermal and sunlight decomposition reaction are also used in metal industry for various purpose.

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