Difference between vegetable oils and Mineral oils
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Property
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Vegetable oils
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Minerals oils
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1. Composition
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These are triesters of glycerol with higher fatty acids.
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These are hydrocarbons (saturated). Kerosene oil-Alkanes from C12 to C16.
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2. Source
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Seeds root and fruits of plants.
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These occur inside earth in the form of petroleum.
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3. Hydrolysis
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Undergo hydrolysis with alkali. Form soap and glycerol.
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No hydrolysis occurs.
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4. On adding NaOH and phenolphthalein
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Decolourisation of pink colour occurs.
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No effect.
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5. Burning
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Burns slowly
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Burn very readily.
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6. Hydrogenation
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Hydrogenation occurs in presence of nickel catalyst. Solid glycerides (fats) are formed.
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No hydrogenation occurs.
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