CBSE 2026 · Region 5 · Set 1 · Q28

Alcohol forms a homologous series with general formula $\displaystyle \mathrm{C}_{\mathrm{n}} \mathrm{H}_{2 \mathrm{n}+1}-\mathrm{OH}$ and -OH group as functional group. Ethanol is commonly called alcohol and is used in alcoholic drinks. It is good solvent, used in medicines, cough syrups, tonics etc. $\displaystyle 1$+$\displaystyle 1$+$\displaystyle 2$

(a)

Write structural formula and name of $\displaystyle 4^{\text {th }}$ member of alcohol homologous series.

(b)

What happens when ethanol is heated with alkaline $\displaystyle \mathrm{KMnO}_{4}$ ? Write chemical equation involved.

(c)OR(c)

Write the chemical equation of reaction of ethanol with ethanoic acid in the presence of concentrated $\displaystyle \mathrm{H}_{2} \mathrm{SO}_{4}$. Write the name of this reaction.

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