The polydispersity index $(PDI)$ of a polymer is $1.25$. If $\overline{M}_{n}$ is $800$,what is its $\overline{M}_{w}$?

Which among the following polymers is used for making handles of cooker?

Chloroprene is used in making

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ Dacron is an example of polyester polymer.
Reason $R:$ Dacron is made up of ethylene glycol and terephthalic acid monomers.
In the light of the above statements,choose the most appropriate answer from the options given below.

Which of the following statements is false for biodegradable polymers?

$R$ is one of the monomers for the formation of a polymer called