An organic compound $A$ containing C, H and O has a pleasant odour with boiling point of 78$^ \circ C$. On boiling $A$ with concentrated ${\rm{\;}}{{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}$, a colourless gas is produced which decolourises bromine water and alkaline ${\rm{KMn}}{{\rm{O}}_4}$. The organic liquid $A$ is

${{\rm{C}}_2}{{\rm{H}}_5}{\rm{OH}}$

${{\rm{C}}_2}{{\rm{H}}_5}{\rm{Cl}}$

${{\rm{C}}_2}{{\rm{H}}_5}{\rm{COOC}}{{\rm{H}}_3}$

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NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

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Analyzing +4 | -1

An organic compound

A

containing C, H and O has a pleasant odour with boiling point of 78

^ \circ C

. On boiling

A

with concentrated

\mathrm{\;}{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}

, a colourless gas is produced which decolourises bromine water and alkaline

\mathrm{KMn}{\mathrm{O}_4}

. The organic liquid

A

View answer and explanation

Correct option: C

{\mathrm{C}_2}{\mathrm{H}_5}\mathrm{OH}

Option C is correct because ethanol has a boiling point of 78°C, a pleasant odor, and produces ethene upon reaction with concentrated sulfuric acid, which decolorizes bromine water and alkaline KMnO4.

NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

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