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प्रश्न
Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?
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उत्तर
Carbon dioxide evolves when ethanoic acid is added to sodium carbonate.
2CH3COOH + Na2CO3 → 2CH3COONa + CO2 + H2O
When the gas evolved during this reaction, is passed through the lime water in a test tube, the latter turns milky. This indicates that the gas evolved is carbon dioxide.
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संबंधित प्रश्न
When ethanol reacts with ethanoic acid in the presence of conc. H2SO4, a substance with fruity smell is produced. Answer the following:-
(i) State the class of compounds to which the fruity smelling compounds belong. Write the chemical equation for the reaction and write the chemical name of the product formed.
(ii) State the role of conc. H2SO4 in the reaction.
Consider the following comments about saponification reactions:
I. Heat is evolved in these reactions.
II. For quick precipitation of soap, sodium chloride is added to the reaction mixtures.
III. Saponification reactions are a special kind of neutralisation reactions.
IV. Soaps are basic salts of long-chain fatty acids.
The correct comments are
(a) I, II and III
(b) II, III and IV
(c) I, II and IV
(d) Only I and IV
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
What are esters ?
What type to compound is CH3COOH?
Name two oxidising agents which can oxidise ethanol to ethanoic acid.
Vinegar is a solution of about:
(a) 5 to 8 per cent ethanoic acid in alcohol
(b) 5 to 8 per cent ethanoic acid in water
(c) 50 to 80 per cent ethanoic acid in water
(d) 50 to 80 per cent ethanoic acid in alcohol
Consider the following organic compound:
CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO
Out of these compound:
Which compound is a constituent of vinegar?(e) Which compound is a constituent of vinegar?
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
The next higher homologue of ethanoic acid is ______.
What do you notice when acetic acid reacts with litmus?
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.
Name the functional group present in the following compound:
HCOOH
Explain the following term with example.
Monomer
How Will You Carry Out the Following Conversions?
Ehane to acitic acid
Why is pure acetic acid also known as glacial acetic acid?
Write the chemical equation for the following:
Combustion of methane
Ethanoic acid _________.
A spatula full of sodium carbonate is taken in a test tube and 2 mL of dilute ethanoic acid is added to it.
Write a chemical equation for the reaction.
