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Saponification

Anisha wanted...

Question

Anisha wanted to create soap, she mixed with sodium hydroxide to obtain ethanol and sodium acetate.

A

washing soda

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B

ethyl ethanoate

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C

methyl ester

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D

sodium ethoxide

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Solution

The correct option is B ethyl ethanoate
On treating an ester with sodium hydroxide an alcohol and sodium salt of carboxylic acid is obtained. This is known as saponification reaction. As sodium acetate and ethanol is obtained the reactant must be ethyl ethanoate

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Q. Vinay was trying to create sodium acetate, he added ethanoic acid and ‘A’ in an open vessel to concentrated

H_{2} S O_{4}

and was surprised when the solution gave a sweet effervescence. So he started again in a closed vessel and obtained ethyl acetate. Then he added ‘B’ and created sodium acetate. Find A and B.

Sodium ethoxide is prepared by the reaction of ethanol with aqueous sodium hydroxide.

Q. In the reaction where ethanol reacts with sodium metal to give sodium ethoxide and hydrogen gas, the ethanol behaves like _______.

Q. Ethanol acts as when it reacts with sodium metal to form sodium ethoxide and hydrogen gas.

Q. The compound formed when ethanol reacts with sodium is ______.
(sodium ethanoate, sodium ethoxide, sodium propanoate)

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