Name: Preparation of Alcohols
Uploaded: 2019-07-19
Duration: 4 min 43 s
Description: Alcohol is a psychosomatic drug and it is bad for health if consumed. However, it is a useful organic solvent in chemistry labs. Tune in to learn more about...

Question

Ethane reacts with chlorine, in a substitution reaction.

a. Draw the structural formula for each compound that can form, as the reaction proceeds. (Isomers too!)

b. Write the formula for each compound in a.

Accepted Answer

a. The reaction in which one atom of a molecule is replaced by another atom (or group of atoms) is called as substitution reaction. The products formed are:

1. Monochloroethane

2. Dichloroethane: It can have two isomeric forms:

(i) 1,1-Dichloroethane

(ii) 1,2-Dichloroethane

3. Trichloroethane: It can have two isomeric forms:

(i) 1,1,1-Trichloroethane

(ii) 1,1,2-Trichloroethane

4. Tetrachloroethane: It can have two isomeric forms:

(i) 1,1,1,2-Tetrachloroethane

(ii) 1,1,2,2-Tetrachloroethane

5. Pentachloroethane

6. Hexachloroethane

b. The reaction of chlorine with ethane:

$\underset{ethane}{C_{2} H_{6}} + {Cl}_{2} \to \underset{monochloroethane}{C_{2} H_{5} Cl} + HCl$

$\underset{monochloroethane}{C_{2} H_{5} Cl} + {Cl}_{2} \to \underset{dichloroethane}{C_{2} H_{4} {Cl}_{2}} + HCl$

$\underset{dichloroethane}{C_{2} H_{4} {Cl}_{2}} + {Cl}_{2} \to \underset{trichloroethane}{C_{2} H_{3} {Cl}_{3}} + HCl$

$\underset{trichloroethane}{C_{2} H_{3} {Cl}_{3}} + {Cl}_{2} \to \underset{tetrachloroethane}{C_{2} H_{2} {Cl}_{4}} + HCl$

$\underset{tetrachloroethane}{C_{2} H_{2} {Cl}_{4}} + {Cl}_{2} \to \underset{pentachloroethane}{C_{2} {HCl}_{5}} + HCl$

$\underset{pentachloroethane}{C_{2} {HCl}_{5}} + {Cl}_{2} \to \underset{hexachloroethane}{C_{2} {Cl}_{6}} + HCl$

Ethane reacts with chlorine, in a substitution reaction.

a. Draw the structural formula for each compound that can form, as the reaction proceeds. (Isomers too!)

b. Write the formula for each compound in a.

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