Reaction of alkyl halides with aromatic compounds in presence of anhydrous AlCl₃ is known as:

• Friedel-Craft's reaction

• Hofmann degradation

• Kolbe's synthesis

• Beckmann rearrangement

Which of the following will not give iodoform test?

• Isopropyl alcohol

• Ethanol

• Ethanal

• Benzyl alcohol

The dehydration of 2-methyl butanol with conc. H₂SO₄ gives :

• 2-methyl butene as major product

• pentene

• 2-methyl but-2-ene as major product

• 2-methyl pent-2-ene

Which of the following order is true regarding the acidic nature of phenol?

• Phenol < o-cresol < o-nitrophenol

• Phenol > o-cresol > o-nitrophenol

• Phenol < o-cresol > o-nitropheno

• o-cresol < phenol < o-nitrophenol

Identify the correct statement in the following

• n-butane and isobutane are functional isomers

• Propan-1-ol and propan-2-ol are position isomers

• Dimethyl ether and ethanol are chain isomers

• Ethanoic acid and methyl methanoate are position isomerase.

In the following sequence of reactions

${\mathrm{CH}}_3\mathrm{Br} \stackrel{\mathrm{KCN}}{\to }, \mathrm{A} \stackrel{{\mathrm{H}}_3{\mathrm{O}}^{-}}{\to } \mathrm{B} \stackrel{\mathrm{LiAl}/{\mathrm{H}}_4}{\to }$

The end product C is

• acetone

• ethyl alcohol

• methane

• acetaldehyde

247.

Which of the following will not give a positive iodoform test ?

• CH₃CH₂CHOHCH₃

• CH₃CH₂CH₂COCH₃

• CH₃CH₂COCH₂CH₃

• CH₃COC₆H₅

To distinguish between salicylic acid and phenol one can use :

• NaHCO₃ solution

• 5% NaOH solution

• neutral FeCl₃

• bromine water

Acid catalyzed hydration of alkenes except ethene leads to the formation of

• mixture of secondary and tertiary alcohols

• mixture of primary and secondary alcohols

• secondary or tertiary alcohol

• primary alcohol

Among the following compounds which can be dehydrated very easily ?

• CH₃CH₂CH₂CH₂CH₂OH

• CH₃CH₂CH₂CH(OH)CH₃

• CH₃CH_{2$\underset{\mathrm{OH}}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}$CHCH3}

• CH₃CH₂CH(CH₃)CH₂CH₂OH