Aldehydes, Ketones and Carboxylic Acids Part 2

A hydrocarbon ' X ' is found to have molar mass of 80.A10.0‌mg of compound ' X ' on hydrogenation consumed 8.40‌mL of H2 gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/molecules produced from the ozonolysis of compound ' X ' is_____