Chemistry : Alcohols, Phenols and Ethers

Assertion : p-Nitrophenol gives more electrophilic substituted compound than m-methoxyphenol.

Reason : Methoxy group shows only negative I-effect.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Which of the following compounds would not evolve CO₂ when treated with NaHCO₃ solution ?

• salicylic acid

• Phenol

• anisole

• phenyl benzoate

By heating phenol with chloroform in alkali , it is converted into :

• salicylic acid

• salicylaldehyde

• anisole

• phenyl benzoate

When a mixture of calcium benzoate and calcium acetate is dry distilled , the resulting compound is :

• acetophenone

• benzaldehyde

• benzophenone

• acetaldehyde

Cumene process is the most important commercial method for the manufacture of phenol. Cumene is

• iso-propyl benzene

• ethyl benzene

• vinyl benzene

• propyl benzene.

Which is used to obtain salicylic acid from phenol ?

• CCl₄

• CHCl₃

• CH₃COOH

• COCH₃

When phenol reacts with phthalic anhydride in presence of H₂SO₄ and heated and hot reaction mixture is poured in NaOH solution, then product formed is

• alizarin

• methyl orange

• fluorescein

• phenolphthalein.

Dehydration of glycerol produces :

• propanone

• allyl alcohol

• glycol

• acrolein

In solvents like DMSO, acetonitrile, F^- ion of dissolved NaF is more reactive than in methyl alcohol becasue

• CH₃OH is more polar than DMSO and CH₃CN

• CH₃OH is less polar than DMSO and CH₃CN

• unsolvated F^- ion is DMSO or CH₃CN acts more efficiently as nucleophile

• -OH group is a better leaving group than F^- ion