Poly (butylene terephthalate) is a plastic material used in automotive ignition systems and has the formula:

Write the reaction.

Poly (butylene terephthalate) is a plastic material used in automotive ignition systems and has the formula: Is this an addition polymer or condensation polymer?

Poly (butylene terephthalate) is a plastic material used in automotive ignition systems and has the formula: Suggest the monomers which might be used to synthesise this polymer.

Poly (butylene terephthalate) is a plastic material used in automotive ignition systems and has the formula: What type of polymer is it ?

Write the formulae of A and B in the above reaction.

Suggest some ways to reduce the use of plastic materials.

In which ways use of plastic materials is harmful for environment and society?

Name the absorbing material used to control the reaction rate of neutrons in a nuclear reactor.

Compound X and aluminium are used to join railway tracks. Write down its reaction.

A substance 'S' is used as a building material and is insoluble in water. When reacted with dil H_2SO_4 it produces a gas 'X' which turned lime water milky. When the liberated gas 'K' passed in excess, the milkiness disappeared. Write the name and chemical formula of S and its reactions will dil H2SO4, name the acid and base from which the substance 'S' is made.