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05/10/2021 5:40 pm
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(a) What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
(b) What happens when vegetable oils are hydrogenated? Name the catalyst used.
(c) What is the advantage of detergents over soaps for washing clothes? Also, state one disadvantage.
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05/10/2021 5:55 pm
(a) Ethanoic acid reacts with sodium hydroxide to form a salt called sodium ethanoate and water.
CH3COOH + NaOH → CH3COONa + H2O
(b) On hydrogenation, the liquid vegetable oils change into solid fat (vanasapati ghee). Nickel or palladium can be used as the catalyst.
(c) Advantage: Detergents can be used even with hard water and have stronger cleaning action.
Disadvantage: Detergents are not biodegradable and hence cause water pollution.