Which of the following polymers is used to obtain plastic dinnerware?

Which of the following polymers has the highest glass-transition temperature $(T_g)$?

Which of the following is used to manufacture plastic crockery?

The natural rubber is the polymer of

The polydispersity index of a polymer containing $10$ molecules with molecular mass $1.0 \times 10^4$ and $10$ molecules with molecular mass $1.0 \times 10^5$ is approximately.

Which of the following statements is incorrect?