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प्रश्न
Raina while doing certain reactions observed that heating of substance ‘X’ with a vinegar-like smell with a substance ‘Y’ (which is used as an industrial solvent.) in the presence of conc. Sulphuric acid in a water bath gives a sweet-smelling liquid ‘Z’ having molecular formula C4H8O2. When heated with caustic soda (NaOH), ‘Z’ gives back the sodium salt and the compound ‘Y’.
Identify ‘X’, ‘Y’, and ‘Z’. Illustrate the changes with the help of suitable chemical equations.
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उत्तर
- X - Ethanoic acid/acetic acid/CH3COOH
- Y - Ethanol/Ethyl alcohol/C2H5OH
- Z - Ethyl ethanoate/Ester/CH3COOC2H5
\[\ce{\underset{(Ethanoic acid)}{CH3-COOH} + \underset{(Ethanol)}{CH3 - CH2OH} <=>[Acid]\underset{(Ester)}{CH3-\underset{\overset{11}{O}}{C}-O-CH2-CH3} + H2O}\]
\[\ce{CH3COOC2H5 ->[NaOH]C2H5OH + CH3COONa}\]
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संबंधित प्रश्न
Give the common name and IUPAC name of C2H5OH.
Give any two uses of ethanoic acid.
An organic acid X is a liquid, which often freezes during winter time in cold countries, having the molecular formula C2H4O2. On warming it with methanol in the presence of a few drops of concentrated sulphuric acid, a compound Y with a sweet smell is formed.
(a) Identify X and Y. Also write their formulae showing the functional group present in them.
(b) Write a chemical equation for the reaction involved.
What do you notice when acetic acid reacts with metals?
What do you observe when acetic acid is added to a neutral FeCl3 solution?
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
CH3–CH2–CHO : propanal : : CH3–COOH : _______
Write the chemical equation for the following:
Esterification Reaction
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
