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प्रश्न
What is an oxidising agent?
Explain the term Oxidising agent with example.
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उत्तर १
An oxidising agent is a reactant which readily transfers oxygen atoms to another substance by reducing itself in the process.
उत्तर २
The substances which can give oxygen to other substances are called oxidant or oxidizing agents.
E.g. Potassium permanganate (KMnO4) and potassium dichromate (K2Cr2O7) in acidic or alkaline medium is commonly used oxidants.
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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.
When you add about 2 ml of acetic acid to a test tube containing an equal amount of distilled water and leave the test tube to settle after shaking its contents, what will you observe in the test tube after about 5 minutes?
(A) A white precipitate settling at its bottom
(B) A clear colourless solution
(C) A layer of water over the layer of acetic acid
(D) A layer of acetic acid over the layer of water
How esters are prepared ?
Complete the following chemical equations: C2H5OH+O2→
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
Complete the following chemical equations: CH3COOH+NaHCO3→
When you add a few drops of acetic acid to a test-tube containing sodium bicarbonate powder, which one of the following is your observation?
(A) No reaction takes place
(B) A colourless gas with pungent smell is released with brisk effervescence
(C) A brown coloured gas is released with brisk effervescence
(D) Formation of bubbles of a colourless and odourless gas
Name the following:
The distinctive reaction that takes place when ethanol is treated with acetic acid.
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
Write the formulae of ethanoic acid.
Draw the structure of butanoic acid.
Why is the conversion of ethanol into ethanoic acid an oxidation reaction?
Complete the following equation:
`CH_3 COOH + CH_2 H_5 OH` 
The organic acid present in vinegar is ______.
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of conc. H2SO4?
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.
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
What do you notice when acetic acid reacts with metals?
What do you notice when acetic acid reacts with alkalies?
Name the compound formed when acetic acid and ethanol react together.
Name the substance used to change acetic acid to acetic anhydride?
What do you observe when acetic acid is added to a neutral FeCl3 solution?
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
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
How is ethyne prepared in the laboratory?
What is the action of acetic acid with litmus paper?
When acetaldehyde is oxidized with acidified potassium dichromate, it forms ______.
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
Explain the following reaction with an example.
Esterification
Explain the following reaction with an example.
Saponification
Ethanoic acid turns ______ litmus to ______
Bubbles are seen in the test tube during the preparation of lime water.
Give the balanced chemical equation of the reaction.
Oxidation of ethanol by acidified potassium dichromate.
