Question

Chlorine reacts with ethanol to give [MP PMT 1989; CPMT 1997; KCET 1998; JIPMER 1999]
A) Ethyl chloride B) Chloroform C) Acetaldehyde D) Chloral

Answer 1

Hello Dear.

Here is the answer---

→→→→→→→→→

Answer---  Option B. Chloroform.

IUPAC Name---Tri-Chloro-ethane


Explanation ---

Chlorine Reacts with the Ethanol to give Trichloroethane.
The Reaction occurs in the three steps.

In first step,
In this step, Chlorine oxidizes ethanol to the Aldehyde ethanal.
   
   2Cl₂ + CH₃CH₂OH --------------CH₃CHO + 2HCl

In Second Step,
   
    3Cl₂ + CH₃CHO -----------------CCl₃CHO + 3HCl

In third Step,
 In this step, Base such as Potassium Hydroxide or Sodium Hydroxide reacts with the Organic Compound formed in the second reaction(CCl₃CHO) to form Chloroform or Trichloroethane and the methanoate ion.
 
     KOH + CCl₃CHO ------------------- CHCl₃ + HCOO⁻ + K⁺ 


Overall Reaction can be represented as---

 5Cl₂ + CH₃CH₂OH + KOH -------------- CHCl₃ + 5HCl + HCOO⁻ + X⁺ 
    


Thus, Option B. Chloroform is the Correct answer.



→→→→→→→→→→→→


Hope it helps.


Have a Nice day.

Answer 2

Chlorine reacts with ethanol to give [MP PMT 1989; CPMT 1997; KCET 1998; JIPMER 1999]

A) Ethyl chloride B) Chloroform C) Acetaldehyde D) Chloral

Answer

Chlorine reacts with ethanol to give option (B) Chloroform