1.

Formation of nylons and polyesters are called step growth polymerisation becauseA. the polymers are formed by adding a monomer step by stepB. the polymers are formed by condensation and monomers are joined by loss of simple molecules like waterC. the monomers used for condensation are unsaturated moleculesD. the polymers are formed by addition of a large number of free readicals formed by monomers .

Answer» Correct Answer - B


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