A secondary alkyl halide would be characterized by having a carbon atom connected to two other carbon atoms, with bromine attached to that carbon.
Therefore, bromo-hexane qualifies as a 2-degree or secondary alkyl halide
Because they often have long half-lives, their radioactive persistence in the environment is lengthy.
Number 4
If you spot any errors in my English, please tell me, since I am not a native speaker.
The issue with your setup is that the surface where you placed the drop is contaminated or dirty, preventing it from being wetted by the solution. To fix this, thoroughly clean the surface before applying the drop.
A + B → AB: ✔ combination
AB → A + B: ✔ breakdown
Hydrocarbon + O2 → CO2 + H2O: <span>✔ oxidation</span>
AB + CD → AD + CB: <span>✔ exchange</span>
Refer to the explanation provided. The second intermediate produced during the pyruvate dehydrogenase process is illustrated in the attached file.