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Grade: 11

                        

why methane can't be prepared by kolbe's electrolytic method?

9 years ago

Answers : (4)

SAGAR SINGH - IIT DELHI
879 Points
							

Dear student,

Kolbe's electolytic method is suitable for the preparation of symmetrical alkanes that is alkanes contains even no. of carbons.So methane has only one carbon.Hence it cannot be prepared by Kolbe's electolytic method.

 

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Sagar Singh

B.Tech, IIT Delhi

sagarsingh24.iitd@gmail.com

9 years ago
Ranganatha swamy b v
13 Points
							
Because electrolysis takes place with minimum no of alkanoicacid salts therefore methane cannot be prepared
2 years ago
ankit singh
askIITians Faculty
596 Points
							
methane could not be prepared by Kolbe electrolysis method as there is formation of alkyl radicle and two alkyl radicle combine to form alkane .but in methane there is only one carbon so it is not prepared
2 months ago
Srinivasan S
27 Points
							
Kolbe’s electrolysis reaction involves 2 steps:
 
R-COO- ------> R(alkyl free radical) + CO2   (decarboxylation of an alkanoic acid having  carbons to give an alkyl radical having n-1 carbons; min. being 1, that is CH3  radical)
then the radical dimerizes to an alkane,
2R-------> R-R (an alkane having 2(n-1) carbons).
 
The lowest alkane formed itself has a minimum of 2 carbons (ethane onwards) for the reaction to occur. Since, Methane has only 1 carbon in total, this can’t be formed by Kolbe’s process.
 
 
 
2 months ago
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