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प्रश्न
Write the characteristics of ethanoic acid.
उत्तर
- Ethanoic acid is a colourless liquid at ordinary temperature.
- Its boiling point is 118 °C.
- Melting point of pure ethanoic acid is 17 °C.
- Its aqueous solution is acidic in nature and hence, turns blue litmus red.
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संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
For preparing soap in the laboratory we require an oil and a base. Which of the following combinations of an oil and a base would be best suited for the preparation of soap?
(a) Castor oil and calcium hydroxide
(b) Turpentine oil and sodium hydroxide
(c) Castor oil and sodium hydroxide
(d) Mustard oil and calcium hydroxide
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
When zinc powder is added to acetic acid ______________
(a) the mixture becomes warm
(b) a gas is evolved
(c) the colour of the mixture becomes yellow
(d) a solid settles at the bottom
Write the IUPAC names, common names and formulae of the first two members of the homologous series of carboxylic acids.
What is the common name of methanoic acid.
Draw the structure for the following compound.
Ethanoic acid
Give the common name and IUPAC name of C2H5OH.
What do you notice when acetic acid reacts with metals?
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
In an experiment to study the properties of acetic acid a student takes about 2 mL of acetic acid in a dry test tube. He adds about 2 mL of water to it and shakes the test tube well. He is likely to observe that:
(A) the acetic acid dissolves readily in water
(B) the solution becomes light orange
(C) water floats over the surface of acetic acid
(D) acetic acid floats over the surface of water
Which of the following observations is true about dilute solution of acetic acid?
(A) It smells like vinegar and turns red litmus blue
(B) It smells like onion and turns blue litmus red
(C) It smells like orange and turns red litmus blue
(D) It smells like vinegar and turns blue litmus red
Write the important uses of acetic acid.
State how the following conversions can be carried out:
Ethyl chloride to Ethene.
Choose the correct word/phrase from the options given below to complete the following sentence:
When acetaldehyde is oxidized with acidified potassium dichromate, it forms ______.
Write the molecular formula of the given compound.
Ethanoic acid
What are catalysts?
Write the answers to the questions by observing the following figure.
- Write the chemical reaction shown in the figure above in the form of a balanced equation.
- Write the name of the gas coming out of the large test tube in the above chemical reaction.
- Why do small bubbles appear in the small test tube?
- What is the change in colour of lime water?
Ethanoic acid turns ______ litmus to ______
Which of the following represents saponification reaction?
