ORGANIC CHEMISTRY QUIZ 4 (2025)

Which of the following can used to yield a carboxylic acid?

• carbon dioxide +

  organometallic compound

• hot and conc KMnO4 + H+

  +

  but-1-ene

• potassium hydroxide (aq)

  +

  1,1-dichloropropane

• KMnO4 + benzene

Chlorobenzene reacts with CH3CH2Cl will form?

• 1,2-dichlorobenzene

• 1,3-dichlorobenzene

• 1-chloro-2-ethylbenzene

• 1-chloro-3-ethylbenzene

What will be product formed when KOH (aq) at 55'c is added into 2,2-dibromopropane?

• Diol

• Aldehyde

• Ketone

• Alkene

What are the test can be used to differentiate toluene from chlorobenzene?

• Br2 (aq)

  with AlBr3 as catalyst

  Heat 90'c

• Hot conc. KMnO4 / H+

• NaOH (aq) heat at 55'c

• NaOH (aq) heat at 55'c

  followed by AgNO3 (aq)

What will be formed when CH3CH2CHBrCH3 react with ethanolic KOH ?

• butan-1-ol

• butan-2-ol

• but-1-ene

• but-2-ene

CH3CH2Br + KOH ----> X + AgNO3 ------> Y
What will be the obervation ?

• White precipitate

• Cream precipitate

• Brown precipitate

• Yellow precipitate

Reagent and condition for propene --------> propanol ?

• KMnO4 followed by acidic hydrolysis

• ethanolic KOH

  heat

• H2O(g) at 300'c , 60 atm , H3PO4

• KOH (aq)

  heat at 55'c

What is the product formed when Chlorobenzene react with dilute NaOH solution?

• Phenol

• 
  Sodium Phenoxide

  
  

• 2-chlorophenol

  and

  4-chlorophenol

• No reaction

Which of the reaction can produce ethanenitrile ?

• chloroethane + ethanolic ammonia (heat)

• chloroethane + primary amine (heat)

• chloroethane + ethanolic KCN

• chloroethane + ethanolic KOH

Which of the following pairs can produce (CH3)2C(OH)CH2CH3?

• CH3MgI

  • +

  • CH3COCH2CH3

• (CH3)2CHMgBr
  +

  CH3CHO

• CH3MgCl

  • +

  • (CH3)2CH2CHO

• C2H5Li

  • +
    (CH3)2CO