Consider the structure of $C_8{H}_{18}$ shown below.

Part $1$ of $2$

In the structure below, highlight the bond that can be broken to give a fragment that gives rise to the $(M^{+}-15)$ peak.Consider the structure of $C_8{H}_{18}$ shown below.

Part $1$ of $2$

In the structure below, highlight the bond that can be broken to give a fragment that gives rise to the $(M^{+}-15)$ peak.