Which alkane cannot be prepared by Kolbe's method ?

Alkanes can be prepared from sodium (or) potassium salts of carboxylic acid by using Kolbe's electrolysis or decarboxylation with the help of sodalime. (NaOH and CaO) Which of the Alkane cannot be prepared by Kolbe's electrolysis

Which cannot be prepared by Kolbe's electrolytic reaction using single salt?

Which can not be prepared by Kolbe’s electrolytic reaction using single salt -

One of the following cannot be prepared by Kolbe's electrolytic process?

Which of the following alkanes cannot be produced by Kolbe's electrolysis of sodium or potassium salts of carboxylic acids ?

Which of the following alkanes cannot be produced by Kolbe's electrolysis of sodium or potassium salts fo carboxylic acids ?