List of top Chemistry Questions on Alkanes asked in KEAM

The alkane that cannot be prepared in pure state by Kolbe’s electrolysis is

The general combustion equation for any alkane is given by the following equation: \(C_nH_{2n+2} + X O_2 \to nCO_2 + (n+1) H_2O\). What is the value of ‘X’ in the above equation?