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प्रश्न
Reshu by mistake forgot to label the two test tubes containing Ethanol and Ethanoic acid. Suggest an experiment to identify the substances correctly? Illustrate the reactions with the help of chemical equations.
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उत्तर
By reaction with sodium carbonate/ bi carbonate 1M with the samples, ethanol will not react whereas ethanoic acid gives brisk effervescence.
\[\ce{2CH3COOH + Na2 CO3 -> 2CH3COONa +H2O + CO2}\]
OR
\[\ce{CH3COOH + NaHCO3 -> CH3COONa + H2O + CO2}\]
APPEARS IN
संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
While studying saponification reaction for the preparation of soap, a teacher suggested to a student to add a small quantity of common salt to the reaction mixture. The function of common salt in this reaction is to
(A) reduce the alkalinity of the soap
(B) reduce the acidity of the soap
(C) enhance the cleansing capacity of soap
(D) favour precipitation of soap
A student takes about 6 ml of distilled water in each of the four test tubes P, Q, R and S. He then dissolves an equal amount of four different salts namely, sodium chloride in 'P', potassium chloride in 'Q', calcium chloride in 'R' and magnesium chloride in 'S'. Next, he then adds 10 drops of soap solution to each test tube and shakes its contents. The test tubes in which scum (insoluble substance) is formed with soap are:
(A) P and Q
(B) Q and R
(C) R and S
(D) Q and S
What is the common name of methanol?
A neutral organic compound is warmed with some ethanoic acid and a little of conc. H2SO4. Vapours having sweet smell (fruity smell) are evolved. What type of functional group is present in this organic compound?
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observes
(A) no reaction
(B) a colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) a strong smell of vinegar
Draw the structural formula for the following:
Ethanoic acid
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
