Question 14 Marks
Carbon compounds can be easily oxidised on combustion. In addition to this complete oxidation, we have reactions in which alcohols are converted to carboxylic acids. We see that some substances are capable of adding oxygen to others. These substances are known as oxidising agents. Also some compounds are capable of adding hydrogen. These substances are known as reducing agents.
i. Give any two examples of good oxidising agent.
ii. Complete the reaction:
$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\text { Alk. } \mathrm{KMnO}_{4} \rightarrow$
iii. Give some uses of Alcohol.
OR
Why Acidified potassium dichromate is called an oxidising agent?
i. Give any two examples of good oxidising agent.
ii. Complete the reaction:
$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\text { Alk. } \mathrm{KMnO}_{4} \rightarrow$
iii. Give some uses of Alcohol.
OR
Why Acidified potassium dichromate is called an oxidising agent?
Answer
View full question & answer→i. Alkaline potassium permanganate or acidified potassium dichromate are examples of good oxidising agents.
ii. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\mathrm{Alk} . \mathrm{KMnO}_{4} \rightarrow \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}$
iii. Alcohol is used as a solvent, spirit, alcoholic drinks, fuels, etc
OR
Acidified potassium permagnet $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ is a good oxidising agent because it can add oxygen to the reactant molecule very easily and convert them to acid.
ii. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\mathrm{Alk} . \mathrm{KMnO}_{4} \rightarrow \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}$
iii. Alcohol is used as a solvent, spirit, alcoholic drinks, fuels, etc
OR
Acidified potassium permagnet $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ is a good oxidising agent because it can add oxygen to the reactant molecule very easily and convert them to acid.