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प्रश्न
The reaction between acetic acid and sodium carbonate is shown in the following figure.
Answer the questions with the help of a diagram.
- Which gas does come out as effervescence in the big test tube?
- What is the colour change in the lime water present in the small test tube?
- Write the related reaction.
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उत्तर
- Carbon dioxide gas.
- Lime water turns milky.
- \[\ce{2CH3COOH (aq) + Na2CO3 (g) -> CH3COONa (aq) + H2O (l) + CO2 (g)}\]
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संबंधित प्रश्न
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
What are esters ?
Complete the following chemical equations :CH3COOH+NaOH→
What is the common name of ethanoic acid?
How would you distinguish experimentally between an alcohol and a carboxylic acid on the basis of a chemical property?
An organic compound X of molecular formula C2H4O2 gives brisk effervescence with sodium hydrogen carbonate. Give the name and formula of X.
Consider the following organic compound:
CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO
Out of these compound:
- Which compound is most likely to be sweet-smelling?
- Which compound on treatment with conc. H2SO4 at 170°C forms an alkene?
- Which compound on repeated chlorination forms chloroform?
- Which compound is added to alcohol to denature it?
- Which compound is a constituent of vinegar?
- Which compound is used to sterilise wounds and syringes?
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]
Give the structural formulae of acetic acid.
On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observes
(A) no reaction
(B) a colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) a strong smell of vinegar
How is ethyne prepared in the laboratory?
Define glacial acetic acid?
State the observation
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
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:
Ice like crystals formed on cooling an organic acid sufficiently.
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.
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 of lime appear in the small test tube?
- What is the change in colour of lime net?
Ethanoic acid turns ______ litmus to ______
What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reaction.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
