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प्रश्न
Name two oxidising agents which can oxidise ethanol to ethanoic acid.
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उत्तर
Two oxidising agents which can oxidise ethanol to ethanoic acid are alkaline potassium permanganate (KMnO4) and acidified potassium dichromate (K2Cr2O7).
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संबंधित प्रश्न
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
What do you observe when you drop a few drops of acetic acid to test tubes containing
(a) phenolphthalein
(b) distilled water
(c) universal indicator
(d) sodium hydrogen carbonate powder
Complete the following chemical equations: CH3COOH+NaHCO3→
When zinc powder is added to acetic acid ______________
(a) the mixture becomes warm
(b) a gas is evolved
(c) the colour of the mixture becomes yellow
(d) a solid settles at the bottom
What is the common name of methanoic acid.
What is the common name of methanol?
Fill in the following blank with suitable word:
The next higher homologue of ethanol is ...............
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
Describe one reaction of a carboxylic acid.
How would you distinguish between ethanol and ethanoic acid by chemical test?
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
Name the product formed and give an appropriate chemical equation for the following:
Ethanol oxidised by acidified potassium dichromate.
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
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
What is vinegar and glacial acetic acid?
How will you carry out the following conversions?
Ethene to acetic acid
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
Give the balanced chemical equation of the following reaction:
Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.
Which of the following represents saponification reaction?
Write the chemical equation for the following:
Saponification Reaction
