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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
In an experiment to study the properties of ethanoic acid, a student takes about 3 mL of ethanoic acid in a dry test tube. He adds an equal amount of distilled water to it and shakes the test tube well. After some time he is likely to observe that
(A) a colloid is formed in the test tube.
(B) the ethanoic acid dissolves readily in water.
(C) the solution becomes light orange.
(D) water floats over the surface of ethanoic acid.
Write three different chemical reactions showing the conversion of ethanoic acid to sodium ethanoate. Write balanced chemical equation in each case. Write the name of the reactants and the products other ethanoic acid and sodium ethanoate in each case.
A student adds 2 mL of acetic acid to a test tube containing 2 mL of distilled water. He then shakes the test tube well and leaves it to settle for some time. After about 5 minutes he observes that in the test tube there is :
(A) a clear transparent colourless solution
(B) a clear transparent pink solution
(C) a precipitate settling at the bottom of the test tube
(D) a layer of water the layer of acetic acid
List two uses of esters.
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
Describe a test for carboxylic acids.
Choose those compounds from the following which can turn blue litmus solution red:
HCHO, CH3COOH, CH3OH, C2H5OH, HCOOH, CH3CHO
Give reasons for your choice.
What happens when ethanoic acid reacts with sodium carbonate? Write chemical equation of the reaction involved.
Write the names of the first three members of the carboxylic acid series.
What do you notice when acetic acid reacts with metals?
Give two tests to show that CH3COOH is acidic in nature ?
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
Which one of the following are the correct observations about acetic acid?
(A) It turns blue litmus red and smells like vinegar
(B) It turns blue litmus red and smells like burning sulphur
(C) It turns res litmus blue and smells like vinegar
(D) It turns red litmus blue and has a fruity smell
Explain the following term with example.
Reduction
Choose the correct answer:
Select the acid which contains four hydrozen atoms in it.
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
Ketone : –CO– : : Ester : _______
Write the molecular formula of the given compound.
Sodium ethanoate
Give a chemical reaction in which a catalyst is used.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
