I CIA Quiz-Organic Reaction Mechanism

Aromatic compounds prefer to undergo ____________ substitution reaction

• Nucleophilic          

• Free radical             

•      Electrophilic         

• Chain

    –CN, -NO₂, -SO₃H, -CHO are ortho- para directing group.

 

• true

• false

  The electrophile involved in sulphonation is

• SO_2-                             

•                              SO₃                   

•                  SO₃²⁺                 

•              SO₄

   Which of the following is the reactive species in the nitration of benzene?

•     NO^2– 

•   NO²⁺

• NO₃

• HNO₃

Which of the following is a characteristic of an aromatic compound?

• Planar

• Cyclic

• (4n+2)𝞹 electrons

• All of the above

Which of the following is a characteristic of an aromatic compound?

• Planar

• Cyclic

• (4n+2)𝞹 electrons

• All of the above

Cyclobutadiene is a non-aromatic compound

• true

• false

S_N² reaction is a single step process.

• true

• false

The Ionization of X-C₆H₄-COOH in H₂O at 25⁰C    is ___________

 

•  56 

• 1.00

• 2.04

• 2.50

The value of ρ for alkaline hydrolysis of ethyl benzoate is--------------.

 

•   +2.51

• -2.57

•   + 3.15

• 2.56