Arrange the following polymers is an increasing order of intenqolecular forces: fibre, plastic, elastomer

Elastomer < Plastic < Fibre

The answer is 2. Elastomer < Plastic < Fibre.

The intermolecular forces in polymers are determined by the type of atoms and functional groups that are present in the polymer chains. Elastomers typically have long, flexible polymer chains with weak intermolecular forces. This allows the polymer chains to slide past each other easily, which is why elastomers are so flexible.

Fibres have stronger intermolecular forces than elastomers, but they are still flexible enough to be woven or spun into threads. This is because the polymer chains in fibres are typically aligned in a parallel fashion, which allows them to interact with each other more strongly.

Plastics have the strongest intermolecular forces of the three types of polymers. This is because the polymer chains in plastics are typically cross-linked, which means that they are chemically bonded to each other. Cross-linking makes plastics rigid and hard, but it also makes them less flexible than elastomers or fibres.

Therefore, the correct order of the polymers in increasing intermolecular forces is elastomer, plastic, fibre.