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प्रश्न
Write the formulae of ethanoic acid.
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उत्तर
The formula of ethanoic acid is CH3COOH.
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संबंधित प्रश्न
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
A student adds a few drops of ethanoic acid to test tubes X, Y and Z containing aqueous solutions of sodium chloride, sodium hydroxide and sodium carbonate, respectively. If he now brings a burning splinter near the mouth of the test tubes immediately after adding ethanoic acid in each one of them, in which of the test tube or test tubes the flame will be extinguished?
(A) X and Y
(B) Y and Z
(C) X and Z
(D) only Z
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
Name the following:
The distinctive reaction that takes place when ethanol is treated with acetic acid.
Write the name and chemical formula of the simplest organic acid.
What is the common name of ethanoic acid?
Write the formulae of methanoic acid.
Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?
Give any two uses of ethanoic acid.
State any two uses of esters.
An organic compound A (molecular formula C2H4O2) reacts with Na metal to form a compound B and evolves a gas which burns with a pop sound. Compound A on treatment with an alcohol C in the presence of a little of concentrated sulphuric acid forms a sweet-smelling compound D (molecular formula C3H6O2). Compound D on treatment with NaOH solution gives back B and C. Identify A, B, C and
Name the compound formed when acetic acid and ethanol react together.
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
Name the functional group present in the following compound:
C2H5CHO
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
What is the main constituent of vinegar?
Write a fully balanced equation for the folowing case:
Acitic acid is warmed with ethanol in the presence of concentrated sulpheric acid.
When acetaldehyde is oxidized with acidified potassium dichromate, it forms ______.
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
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.
