Polymers

The final product 'C' in the following series of reactions

${\left(C_7{H}_5{O}_2\right)}_2\stackrel{hv}{\to }\left[X\right]\to 2{\stackrel{•}{C}}_6{H}_5+2C{O}_2$

Consider the above reaction and identify the intermediate 'X'

The polymer, which can be stretched and retains its original status on releasing the force is

Vulcanization of rubber is carried out by heating a mixture of

Which one of the following is NOT a copolymer?

In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids) (number of peptide bonds) is_______________.

Which is true about Buna-N

15.22 Identify the monomer in the following polymeric structures.

15.21 Write the names and structures of the monomers of the following polymers: (i) Buna-S (ii) Buna-N (iii) Dacron (iv) Neoprene

Assertion : Polytetrafluoroethene is used in making non-stick cookwares.

Reason : Fluorine has highest electronegativity.

(i) Assertion and reason both are correct statement but reason does not explain assertion.

(ii) Assertion and reason both are correct statements and reason explains the assertion.

(iii) Both assertion and reason are wrong statement.

(iv) Assertion is correct statement and reason is wrong statement. (v) Assertion is wrong statement and reason is correct statement.