Can ir spectroscopy be used to distinguish 2-pentanone from 2-hexanone why or why not

No

Infrared (IR) Spectroscopy is a set of techniques that involves the analysis of the interaction between infrared light and a molecule. Infrared spectroscopy is mainly used to determine functional groups in molecules and it can also be employed to study and identify chemicals.  

IR spectroscopy cannot be used to distinguish 2-pentanone from 2-hexanone because the two structures have the same functional group. IR spectroscopy can only be used to distinguish molecules that have different functional groups.

answer; /// i believe the correct answer is (reactants);

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.