The degree of crystallinity of which of the following is highest?

Choose the correct option$(s)$ from the following:
$(1)$ Natural rubber is polyisoprene containing trans alkene units.
$(2)$ Nylon-$6$ has amide linkages.
$(3)$ Cellulose has only $\alpha-D$-glucose units that are joined by glycosidic linkages.
$(4)$ Teflon is prepared by heating tetrafluoroethene in the presence of a persulphate catalyst at high pressure.

Which of the following is used in the vulcanization of rubber?

In the trinitrocellulose,each glucose unit contains how many $-OH$ groups?

Which of the following polymers possesses strong intermolecular forces like hydrogen bonding?

The alkyd resins are condensation polymers obtained from dibasic acids and