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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
While studying saponification reaction, a student measures the temperature of the reaction mixture and also finds its nature using blue/red litmus paper. On the basis of his observations the correct conclusion would be
(A) the reaction is exothermic and the reaction mixture is acidic.
(B) the reaction is endothermic and the reaction mixture is acidic.
(C) the reaction is endothermic and the reaction mixture is basic.
(D) the reaction is exothermic and the reaction mixture is basic.
Complete the following chemical equations :CH3COOH + Na2CO3 →
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
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
Choose those compounds from the following which can turn blue litmus solution red:
HCHO, CH3COOH, CH3OH, C2H5OH, HCOOH, CH3CHO
Give reasons for your choice.
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.
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
Name the functional group present in the following compound:
HCOOH
Explain the following term with example.
Monomer
Write the important uses of acetic acid.
How Will You Carry Out the Following Conversions?
Ehane to acitic acid
Fill in the blank with appropriate word/words.
Esterification is the reaction between carboxylic acid and ______ in presence of ____
Give a balanced chemical equation for the following conversion:
Calcium carbide to ethyne.
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
Identify the term or substance based on the descriptions given below:
Hydrocarbon containing a triple bond used for welding purposes
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
Ketone : –CO– : : Ester : _______
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
