NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

1 Easy

1 of 1

Analyzing +4 | -1

An organic liquid

A

containing C, H and O has a pleasant odour with a b.p. of

{78^ \circ }C

. On boiling

A

with conc.

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

a colourless gas is produced which decolourises bromine water and alkaline

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

. One mole of this gas also takes one mole of

{\mathrm{H}_2}

. The organic liquid A is:

View answer and explanation

Correct option: D

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

Option D (

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

) is correct because ethanol dehydrates to ethene, which decolourises bromine water and alkaline

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

More Questions from ALCOHOLS & PHENOLS & ETHERS

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{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}}\xrightarrow{{{\text{PCC}}}}{\text{A}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{ }}{{\text{H}}_2}{\text{O/}}{{\text{H}}^ + }}]{{\left( {\text{i}} \right){\text{ HCN}}}}{\text{B}}

\mathrm{O}_2

{\mathrm{P}_2}{\mathrm{S}_5}