A compound 'X' absorbs 2 moles of hydrogen and 'X' upon oxidation with \(KMnO_4\) | \(H^+\) gives
\(CH_3 - \underset{\underset{O}{||}}C - CH_3,\ CH_3 - \underset{\underset{O}{||}}C - OH\ and\ CH_3 - \underset{\underset{O}{||}}C - CH_2CH_2 - \underset{\underset{O}{||}}C - OH\)
The total number of \(\sigma \) bonds present in the compound 'X' is ________.
