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प्रश्न
How would you distinguish between ethanol and ethanoic acid by chemical test?
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उत्तर
Ethanoic acid releases carbon dioxide gas on reacting with sodium bicarbonate. It is represented by the following equation:
`CH_3 COOH + NaHCO_3 -> CH_3 COONa + CO_2 + H _2 O`
On the other hand, ethanol does not give out a brisk effervescence (carbon dioxide) with sodium bicarbonate.
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संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
What do you observe when you drop a few drops of acetic acid to test tubes containing
(a) phenolphthalein
(b) distilled water
(c) universal indicator
(d) sodium hydrogen carbonate powder
In order to study saponification reaction, we first prepare 20% solution of sodium hydroxide. If we record the temperature of this solution just after adding sodium hydroxide flakes to water and also test its nature using litmus, it may be concluded that the process of making this solution is
(A) exothermic and the solution is alkaline
(B) endothermic and the solution is alkaline
(C) endothermic and the solution is acidic
(D) exothermic and the solution is acidic
How esters are prepared ?
Complete the following chemical equations: C2H5OH+O2→
Complete the following chemical equations: CH3COOH+NaHCO3→
Name the following:
The distinctive reaction that takes place when ethanol is treated with acetic acid.
Why is the conversion of ethanol into ethanoic acid an oxidation reaction?
What do you notice when acetic acid reacts with alcohol?
What do you observe when acetic acid is added to sodium bicarbonate?
How Will You Carry Out the Following Conversions?
Ehane to acitic acid
Write a balanced equation for the following:
Write the equation for the preparation of ethylene from ethyl alcohol.
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
When acetaldehyde is oxidized with acidified potassium dichromate, it forms ______.
Draw the structure formula of ethyne.
Ketone : –CO– : : Ester : _______
A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that ______.
In the presence of the acid catalyst, ethanoic acid reacts with ethanol and ______ ester is produced.
Bubbles are seen in the test tube during the preparation of lime water.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
