ORGANIC CHEMISTRY QUIZ 2 (2025)

Free radical substitution of propane will more likely produce

• 1-chloropropane

• 2-chloropropane

• 1,1-dichloropropane

• 1,1,1-trichloropropane

How to differentiate benzene between toulene?

• conc. HNO3 and conc. H2SO4

• KMnO4 / H+ heat

• Br2 in the presence of catalyst AlBr3

• All of above

What will be produced when but-1-ene reacts with Br2(aq) ?

• CH2BrCHBrCH2CH3

• CH3CHBrCH2CH3

• CH2BrCH(OH)CH2CH3

• CH2(OH)CHBrCH2CH3

How to differentiate cyclohexene and benzene?

• CH3Cl

  with AlCl3 catalyst

• Hydrogen gas

  with Ni catalyst, heated at 180'c

• Br2 in CHCl3

• None from above

Which reagent can be used to test the presence of carbon-carbon double bond?

• Hydrogen bromide in CHCl₃

• Bromine in the presence of ultraviolet light

• Bromine in CHCl₃

• All are correct

What will be produced when KMnO4 + H+ (Heat) react with 3-methylpent-1-ene

• CO2 & water
  and

  carboxylic acid

• CO2 & water
  and

  ketone

• ketone
  and

  carboxylic acid

• both carboxylic acid

What will be produced if concentrated HNO3 and conc.H2SO4 is added into toluene?

• 1-nitrotoluene

• 2-nitrotoluene

• 3-nitrotoluene

• 4-nitrotoluene

What will be produced if ethylbenzene react with conc. KMnO4/ H+?

• Phenylethanoic acid

• Ethanoic acid

• Benzaldehyde

• Benzoic acid

What will be formed if toulene + excess Cl2 in the presence of UV light?

• 2,4,6-trichlorotoluene

• 3-chlorotoluene

• trichloromethylbenzene

• chloromethylbenzene

Toluene + X --------------------> 2-methyltoluene

What is X and its condition?

• X = Cl2
  condition = anhydrous AlCl3

• X = CH3
  condition = anhydrous AlCl3 and heat

• X = CH3Cl
  condition = anhydrous AlCl3

• X = CH3Cl
  ccondition = anhydrous AlCl3 and heat