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प्रश्न
Write the characteristics of ethanoic acid.
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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
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
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
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Propanoic acid
Three organic compounds A, B and C have the following molecular formulae: C4H10O
Which compound contains a carboxyl group? Write its name and structural formula.
Complete the following equation:
\[\ce{CH3COOH + C2H5OH ->[Conc{.} H2SO4]}\]
What is the physical state of CH3COOH?
What happens when ethanoic acid reacts with sodium carbonate? Write chemical equation of the reaction involved.
Give any two uses of ethanoic acid.
Name the reducing agent used to convert acetic acid into ethanol.
If you take a pinch of sodium hydrogen carbonate powder in a test-tube and add drop-by-drop acetic acid to it, what would you observe immediately? List any two main observations.
A student is studying the properties of acetic acid. List two physical properties of acetic acid he observes. What happens when he adds a pinch of sodium hydrogen carbonate to this acid? Write any two observations.
Fill in the blank with appropriate word/words.
Denatured alcohol is a mixture of _____ and _______
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
Assertion (A): Esterification is a process in which a sweet-smelling substance is produced.
Reason (R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
Distinguish between esterification and saponification reactions with the help of chemical equations for each.
A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that ______.
When ethanoic acid is treated with NaHCO^ the gas evolved is ______.
Bubbles are seen in the test tube during the preparation of lime water.
Why is glacial acetic acid called so?
