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JEE CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

1 Medium

1 of 1

Analyzing +4 | -1

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

and

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

can be distinguished by

View answer and explanation

Correct option: D

Both (2) and (3 )

Option D (Both (2) and (3)) is correct because phenol reacts with

FeCl_3

to give a color and ethanol gives iodoform test with

I_2 + NaOH

.

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Assertion (A): Isopropyl alcohol is preferred over ethanol.

Reason (R): Isopropyl alcohol is used as an antiseptic for skin before giving injections. Germinated Barley (an enzyme) is a source of enzyme: The process of converting alkyl halides into alcohols involves The b.p. of alcohols are….than corresponding thiols. Which of the following can not be used to oxidise primary alcohols to aldehydes Conc.

\mathrm{H}_2 \mathrm{SO}_4

heated with excess of

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

140^{\circ} \mathrm{C}