In a pair of isomers of molecular formula C_5 H_8 , both the...

In a pair of isomers of molecular formula $\mathrm{C}_5 \mathrm{H}_8$, both the compounds undergo catalytic hydrogenation to form compounds of molecular formula $\mathrm{C}_5 \mathrm{H}_{10}$. On ozonolysis followed by oxidative workup \left(\mathrm{H}_2 \mathrm{O}_2\right)$, one of the isomers gives a diacid \left(\mathrm{C}_5 \mathrm{H}_8 \mathrm{O}_4\right)$ while the other isomer gives a ketoacid \left(\mathrm{C}_5 \mathrm{H}_8 \mathrm{O}_3\right)$. The pair/s which give/s above set of reactions is/are$