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प्रश्न
A student is studying the properties of acetic acid in his school laboratory. List two physical and two chemical properties which he must observe and note in his record book.
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उत्तर
Physical properties of acetic acid
- It is colourless liquid at room temperature with unpleasant odour.
- It is miscible in water due to the formation of hydrogen bonds with water.
Chemical properties of acetic acid
- It reacts with absolute ethanol in the presence of an acid catalyst to give an ester, a sweet-smelling substances.
- It reacts with carbonates and hydrogencarbonates to give rise to a salt, carbon dioxide and water.
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संबंधित प्रश्न
Fill in the blanks from the choices given within brackets:
The basicity of acetic acid is-------- (3, 1, 4).
What happens when propanoic acid is warmed with methanol in the presence of a few drops of concentrated sulphuric acid? Write equation of the reaction involved.
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
Esters are sweet-smelling substances and are used in making perfumes. Describe an activity for the preparation of an ester with the help of a well labelled diagram. Write an equation for the chemical reaction involved in the formation of the ester. Also write the names of all the substances involved in the process of esterification.
Give the structural formula of Acetic acid.
State how the following conversion can be carried out:
Ethyl chloride to Ethene.
Give a chemical reaction in which a catalyst is used.
Ester is formed by the reaction between ______.
Ethanoic acid reacts with the basic salt, sodium carbonate, to form a salt, named ______, water and carbon dioxide gas.
Shristi heated Ethanol with a compound A in presence of a few drops of concentrated sulphuric acid and observed a sweet smelling compound B is formed. When B is treated with sodium hydroxide it gives back Ethanol and a compound C.
- Identify A and C
- Give one use each of compounds A and B.
- Write the chemical reactions involved and name the reactions.
