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Question

What is the products obtained when chlorine reacts with ethyl alcohol in the presence of NaOH?

A
CH3Cl
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B
C2H5Cl
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C
CCl3.CHO
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D
CHCl3
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Solution

The correct options are
C CCl3.CHO
D CHCl3

When chlorine reacts with ethyl alcohol in the presence of NaOH,

chloroform is obtained as a final product.



Step 1- Oxidation:

CH3CH2OH + Cl2 CH3CHO + 2HCl

(Ethanol) (Acetaldehyde)



Ethanol is ethyl alcohol .



Step 2-Chlorination:

CH3CHO + 3 Cl2 → CCl3CHO + 3HCl

(Chloral)

Step 3- Hydrolysis :

CCl3CHO + NaOH → CHCl3 + HCOONa

(Chloroform)

Options (C) and (D) is correct.


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