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प्रश्न
Ketone : –CO– : : Ester : _______
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उत्तर
Ketone : –CO– : : Ester : –COO–
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संबंधित प्रश्न
A student adds a spoon full of powdered sodium hydrogen carbonate to a flask containing ethanoic acid. List two main observations, he must note in his note book, about the reaction that takes place. Also write chemical equation foe the reaction.
Complete the following chemical equations :CH3COOH+NaOH→
Name the following:
The distinctive reaction that takes place when ethanol is treated with acetic acid.
What is the common name of ethanoic acid?
Draw the structure for the following compound:
Ethanoic acid
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
A student puts a drop of acetic acid first on a blue litmus paper and then on a red litmus paper. He would observe that
(A) the red litmus paper turns colourless and there is no change in the blue litmus paper.
(B) the red litmus paper turns blue and the blue litmus paper turns red.
(C) there is no change in the red litmus paper and the blue litmus paper turns red.
(D) there is no change in the blue litmus paper and the red litmus paper turns blue.
A student adds 4 mL of acetic acid to a test tube containing 4 mL of distilled water. He then shakes the test tube and leaves it to settle. After about 10 minutes he observes:
(A) a layer of water over the layer of acetic acid
(B) a layer of acetic acid over the layer of water
(C) a precipitate settling at the bottom of the test tube
(D) a clear colourless solution
How Will You Carry Out the Following Conversions?
Ehane to acitic acid
Write a balanced equation for the following:
Write the equation for the preparation of ethylene from ethyl alcohol.
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
Choose the correct answer:
Select the acid which contains four hydrozen atoms in it.
State how the following conversion can be carried out:
Ethyl chloride to Ethene.
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
Explain the following reaction with an example.
Esterification
Which of the following substance produces brisk effervescence with baking soda solution?
Bubbles are seen in the test tube during the preparation of lime water.
Anita added a drop each of diluted acetic acid and diluted hydrochloric acid on pH paper and compared the colors. Which of the following is the correct conclusion?
Raina while doing certain reactions observed that heating of substance ‘X’ with a vinegar-like smell with a substance ‘Y’ (which is used as an industrial solvent.) in the presence of conc. Sulphuric acid in a water bath gives a sweet-smelling liquid ‘Z’ having molecular formula C4H8O2. When heated with caustic soda (NaOH), ‘Z’ gives back the sodium salt and the compound ‘Y’.
Identify ‘X’, ‘Y’, and ‘Z’. Illustrate the changes with the help of suitable chemical equations.
A spatula full of sodium carbonate is taken in a test tube and 2 mL of dilute ethanoic acid is added to it.
Suggest a method of testing the gas liberated in the reaction.
