Alcohols and Phenols

Phenols can be prepared from

• Cumene

• Benzenediazonium chloride

• From both Cumene and Diazonium chloride

• Cannot be prepared from the above

Phenol can be converted to nitrobenezene by treating Phenol with

• Nitration mixture

• Nitro compound

• From both the above

• Cannot be prepared from the above

Phenols undergo

• SN1 reaction

• SN2 reaction

• Electrophilic Aromatic Substitution

• None of the above

When phenol is treated with excess of bromine water, it gives which of the following product?

• m-bromophenol

• o-and p-bromophenol

• 2,4-dibromophenol

• 2,4,6-tribromophenol

Phenol is stronger acid than water and itself it is

• weakly acidic

• weakly basic

• alkali

• strong acid

Tags

NGSS.HS-PS1-1

Bromine reacts with phenol and decolorize orange color and turns it to which of the colored precipitate?

• white precipitate

• pink precipitate

• blue precipitate

• black precipitate

Which of the following name reactions produces salicyldehyde?

• Kolbe's reaction

• Rosenmund reduction

• Williamson's synthesis

• Reimer Tiemann reaction

What is the functional group of alcohols?

• –NH₂

• –COOH

• –CHO

• –OH

• –NO₂

phenolphthalein is a special test for phenols

• true

• false

Phenols produce 2,4,6-trinitro phenol using following reagents

• Dil HNO₃

• Con HNO₃

• Con HNO₃ + Con H₂SO₄

• Con H₂SO₄

Tags

NGSS.HS-PS1-5