Question # 1

Which more acidic?

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o-cresol

p-nitrophenol

phenol

m-cresol

Dehydration of ethyl alcohol yields

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Aldehyde

Ketone

Acid

Alkene

The reaction of aromatic acyl chloride and phenol in the presence of a base NaOH or pyridine is called

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Kolbe's reaction

Perkin's reaction

Sandmeyer's reaction

Schotten Baumann reaction

Dow's process is used for the preparation of

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Ester

Ethers

Alcohols

Phenols

Which of the following is weakly acidic in nature

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Alcohol

Phenol

Aidehyde

Amide

Salol is prepared from

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Salicylic acid and phenol

Salicylic acid and methyl alcohol

Both

None

Which of the following cannot be produced by acidic dehydration of alcohols?

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Ethers

Aldehyde

Alkyl Hydrogen sulphate

Alkene

Which of the following will not give iodoform test?

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Ethanol

Ethanal

Isopropyl alcohol

Benzyl alcohol

Which of the following is correct?

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Reduction of any aldehyde gives secondary alcohol

Reaction of vegetable oil with H₂SO₄gives glycerine

Alcoholic iodine with NaOH gives iodoform

Sucrose on reaction with NaCl gives invert sugar

The strongest acid among the following aromatic compound is

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Ortho-nitrophenol

Para-chlorophenol

Para-nitrophenol

Meta-nitrophenol

Which compound has the maximum repulsion with water?

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C₆H₆

C₂H₅OH

CH₃CH₂CH₂OH

CH₃----O---CH₃

Which of the following is used as anesthetics

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Alcohol

Diethylether

Phenol

Dimethyl ether

Alcohols are derivatives of:

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Alkanes

Alkens

Alkynes

Benzene

C₂H₅OH can be differentiated from CH₃OH by

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Reaction with HCl

Reaction with NH₃

Iodoform test

Solubility in water

Which one is used as a fuel for internal combustion engines in many European countries and Brazil

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C₂H₅OH

CH₃OH

CH₃COOH

C₂H₂

Alcohols reacts with Grignard reagent to form

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Alkanes

Alkenes

Alkynes

All

When sodium metal reacts with alcohols

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Hydrogen gas evolves

Sodium hydroxide is obtained

Alcohol is reduced

Alcohol is polymerised

In Lucas test teriary alcohol make an oily layer

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Immediately

In 10 mins

On heating

Not

Concentration of rectified spirit is:

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12%

14%

90%

95%

An organic compound will decolorise dill acidified (aq) KMnO₄on warming, but will not decolorise bromine water. What is the compound

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KMnO₄

Ethanol

Ethane

CH₃CH₂Cl

Which compound is more soluble in water

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C₂H₅OH

C₆H₅OH

CH₃OCH₃

n-hexanol

An organic compound 'X' on treatment with acidified K₂Cr₂O₇gives a compound 'Y' which reacts with I₂and sodium carbonate to form Triodomethane. The compound 'X' is

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CH₃OH

CH₃CHO

CH₃CH(OH)CH₃

CH₃COCH₃

Grignard reagent on reaction with a ketone forms

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Tertiary alcohol

Secondary alcohol

Primary alcohol

Carboxylic acid

If an electrophile attacks then ______ bond breaks first

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C - H

O - H

C - O

None of these

Which statement in not correct about alcohol?

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Ethyl alcohol is heavier than water

Ethyl alcohol ecaporates more quickly

Alcohol with less number of carbon atoms is more soluble in water than alcohol with more number of carbons atoms

Alcohol produces H₂by reaction with sodium metal

Derivative of water is:

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Alcohals

Phenols

Either

Phenol

Methyl alcohol is not used:

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As a solvent

As an anti-freezing agent

As a subsitution for petrol

For denating of ethyle alcohal

Which compound does not show hydrogen bonding with water

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CH₃OH

C₂H₅OH

CH₃- O - CH₃

C₆H₅OH

In Lucas test primary alcohol make as oily layer

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Immediately

In 10 mins

On heating

Not

denaturing of alcohol is done by adding methanol in ethanol:

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10%

20%

30%

40%

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ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers Online Test MCQs With Answers

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