Compare the IR spectra of your purified product and the indene starting material. They will be rather similar, with one big difference. Describe the nature (frequency, broadness, strength) of the new peak in the product spectrum and explain what functional group this new peak denotes.

Outermost (valence) electrons

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. polyethylene is a plastic material called thermoplastic. one very useful property of thermoplastic is that when it is heated it turns into liquid, which can be molded into desired shape and size. also the material do not dissolve at room temperature.

is the answers your welcome! : )

The chlorine is the chemical property