30 questions related to crop production, synthetic fibres, microorganisms and metals and non-metals.
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question from synthetic fibre -1)what is polymer ?2)how many types of polymer and define it.? 3) what is fibre, fabric ?4) classify the types of fibre and define it? 5) advantage of natural fibre .6) advantage of synthetic fibre ? 7) discuss types of synthetic fibre .? 8) discuss the properties of rayon and nylon and polyester and their applications their uses? 9) why is nylon such a useful fibre and what are its uses? 10) which is the first fully synthetic fibre?
Answer:
1- A natural or artificial chemical compound consisting of large molecules.
2- The most common types of synthetic organic polymers, Which are commonly found in households are:
*Low-density polymer
*High-density polymer
*polypropylene
*Polyvinyl chloride
*Polystyrene
*Nylon
*Teflon
*Thermoplastic Polyurethanes