Edible oil is not allowed to stand for a long time in an iron or tin container. Give reasons.

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Solution

Edible oil is not allowed to stand for a long time in an iron or tin container due to following reason. The fatty acids will react with rust and form salts which will contaminate the oil and make it rancid giving a foul odour and unpleasant taste.

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Similar questions

Give scientific reasons:

(1) Grills of doors and windows are always painted before they are used.

(2) Physical states of reactants and products are mentioned while writing a chemical equation.

(3) Potassium Ferrocyanide is stored in dark coloured bottles and kept away from sunlight.

(4) Iron articles rust readily whereas steel which is also mainly made of iron will not undergo corrosion.

(5) Edible oil is not allowed to stand for a long time in an iron or tin container.

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