AP TET Paper 2 Math and Science Model Paper 2

Concept:Polymers are large molecules made of repeating units; each polymer has specific applications based on its properties.Explanation:$\text{Terylene}$ is a synthetic polyester fibre obtained by polymerising ethylene glycol and terephthalic acid.It is mainly used to make fabrics and clothing.So, pair 1 is correctly matched.$\text{Teflon}$ is polytetrafluoroethylene ($\mathrm{PTFE}$), which is highly non-stick and heat-resistant.It is widely used for coating non-stick cookware.So, pair 2 is correctly matched.$\text{Melamine formaldehyde resin}$ is a hard, durable thermosetting plastic.It is used to make ceramic-like plastic articles, such as plates and cups.So, pair 3 is correctly matched.$\text{Nylon-6}$ is a polyamide fibre used mainly for making fabrics, ropes, and bristles.It is not used as synthetic rubber.So, pair 4 is incorrectly matched.Therefore, the correctly matched pairs are 1, 2, and 3 only.Answer:Option B — 1, 2 and 3 only.