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प्रश्न
In the presence of the acid catalyst, ethanoic acid reacts with ethanol and ______ ester is produced.
पर्याय
Ethanol
Ethanoic
Ethyl ethanoate
Ethyl ethanol
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उत्तर
In the presence of acid catalyst, ethanoic acid reacts with ethanol and ethyl ethanoate ester is produced.
Explanation:
\[\ce{\underset{(Ethanoic acid)}{CH3-COOH} + \underset{(Ethanol)}{CH3-CH2-OH} ->[Acid][Catalyst] \underset{(Ethyl ethanoate)}{CH3-COO-CH2-CH3} + \underset{(Water)}{H2O}}\]
APPEARS IN
संबंधित प्रश्न
A student puts a drop of reaction mixture of a saponification reaction first a blue litmus paper and then on a red litmus paper. He may observe that:
(a) There is no change in the blue litmus paper and the red litmus paper turns white.
(b) There is no change in the red litmus paper and the blue litmus paper turns red.
(c) There is no change in the blue litmus paper and the red litmus paper turns blue.
(d) No change in colour is observed in both the litmus papers
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
You have four test tubes, A, B, C and D containing sodium carbonate, sodium chloride, lime water and blue litmus solutions respectively. Out of these the material of which test tube/ test tubes would be suitable for the correct test of acetic/ethanoic acid?
(a) only A
(b) A and B
(c) B and C
(d) A and D
Fill in the blanks from the choices given within brackets:
The basicity of acetic acid is-------- (3, 1, 4).
Draw the structure of butanoic acid.
Describe a test for carboxylic acids.
Complete the following equation:
\[\ce{CH3COOH + C2H5OH ->[Conc{.} H2SO4]}\]
What happens when ethanoic acid reacts with sodium carbonate? Write chemical equation of the reaction involved.
What is an oxidising agent?
Describe one reaction of a carboxylic acid.
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.
A student takes 2 mL acetic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He makes the following observations:
I. A colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are:
(A) I, II, and III
(B) II, III and IV
(C) III, IV and I
(D) IV, I and II
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
Acetic acid solution turns:
(1) blue litmus red
(2) red litmus blue
(3) blue litmus colourless
(4) red litmus colourless
Write the chemical equation for the following:
Combustion of methane
A compound X when treated with an organic acid Y (having vinegar-like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.
- Identify X, Y and Z
- Write the structural formula of X and Y.
- What type of compound is P?
- Name the above reaction.
- If compounds X and Y both have 2 carbon atoms. Write the reaction.
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
Write the molecular formula of the given compound.
Ethanoic acid
Explain the following reaction with an example.
Saponification
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
