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प्रश्न
Explain the following reaction with an example.
Saponification
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उत्तर
When an ester is heated with dilute sodium hydroxide (an alkali) solution, it gets converted back to the original alcohol and sodium salt of the original carboxylic acid. Such a reaction is known as saponification.
\[\ce{Ester + Sodium hydroxide ->[Heat] Sodium carboxylate + Alcohol}\]
E.g. Ethyl ethanoate and sodium hydroxide react to give sodium ethanoate and ethanol.
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संबंधित प्रश्न
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
Identify the term or substance based on the descriptions given below
Ice like crystals formed on cooling an organic acid sufficiently.
Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid
Write the formulae of methanoic acid.
Which of the following will give brisk effervescence with sodium hydrogen carbonate and why?
CH3COOH, CH3CH2OH
Complete the following equation:
`CH_3 COOH + CH_2 H_5 OH` 
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
A student is studying the properties of acetic acid. List two physical properties of acetic acid he observes. What happens when he adds a pinch of sodium hydrogen carbonate to this acid? Write any two observations.
Write three physical properties of acetic acid.
Write balanced euation for the following :
Ethane is burnt in air.
Draw the structural formula of a compound with two carbon atoms in the following case:
An alkane with a carbon to carbon single bond.
Write a fully balanced equation for the folowing case:
Acitic acid is warmed with ethanol in the presence of concentrated sulpheric acid.
State how the following conversion can be carried out:
Ethyl chloride to Ethene.
When acetaldehyde is oxidized with acidified potassium dichromate, it forms ______.
Write a balanced chemical equation for the following:
Monochloroethane is hydrolysed with aqueous KOH.
CH3–CH2–CHO : propanal : : CH3–COOH : _______
A student while observing the properties of acetic acid would report that this smells like ______.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
