Question

The basic chemical building block of natural rubber obtained from trees is:
A. Acetylene
B. Vinyl chloride
C. Isoprene
D. Neoprene

Answer 1

Hint: Natural rubber is created from plants and is delegated as a polymer. A chemical compound with huge atoms made of numerous small particles of a similar kind. A few polymers exist normally and others are created in labs and industries.

Complete step-by-step answer:Isoprene was first segregated by the decay of natural rubber. About ninety five percent of isoprene creation is utilized to deliver cis-polyisoprene - a manufactured variant of natural rubber. Characteristic rubber comprises chiefly of poly-cis-isoprene.
Natural rubber is quite possibly the main polymers in human culture. It is utilized in clinical gadgets, surgical gloves, airplane and vehicle tires, pacifiers, garments, toys, and so on.
Synthetic (man-made) rubber can be created through a chemical cycle, however, individuals have not had the option to deliver an engineered rubber that has all the properties of natural rubber. Thus, natural rubber can't be supplanted by synthetic rubber in the greater part of its applications. This is the reason natural rubber is still very imperative to human culture.

 Hence the correct option is C.

Note: The properties of rubber incorporate high strength and the capacity to be extended commonly without breaking. Regular elastic mixes are uncommonly adaptable, acceptable electrical insulators, and are impervious to numerous destructive substances. Isoprene is produced and discharged by numerous types of trees (significant makers are oaks, poplars, eucalyptus, and a few legumes). The yearly creation of isoprene outflows by vegetation is around six hundred million metric tons, half from tropical broadleaf trees and the rest from bushes.