Which of the following is not a polyamide fibre?

Ethylene on reaction with cold,dilute alkaline $KMnO_4$ at $273 \ K$ gives a compound '$P$'. This on polymerisation with which of the following gives dacron?

Nylon threads are made of

Among cellulose,poly(vinyl chloride),nylon and natural rubber,the polymer in which the intermolecular force of attraction is weakest is

Which among the following pairs of monomers does not generate a polyamide polymer?

Which of the following statements is incorrect?