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Thermosetting polymers - Classification of polymers
These are the polymers which go through permanent modification on heating. They get firm and infusible on heating. They are generally built from low molecular mass semifluid molecules. While heated they went highly cross linked to make hard infusible and insoluble components. The cross links take the atom in place that is why heating does not permit them to move liberally. Thus a thermosetting plastic is cross linked and is lastingly rigid.
giving correct formulas give the reactantsand products in the formation of poly2 butane
The number of orbitals in d sub-shell is : (1) 1 (2) 3 (3) 5 (4) 7 Ans: 5
which solution is formed when iodine solution ,copper sulphate and caustic soda are mixed?
Normal 0 false false false EN-IN X-NONE X-NONE p x orbital can accommodate : (1) 4 electrons
Total number of unpaired electrons in an atom of atomic number 29 is: (1) 1 (2) 3 (3) 4 (4) 2 Ans: 1
Laboratory safety During your observation of chemistry you will conduct experiments in the laboratory. When working in the lab you are accountable for the safety of yourself and o
A boat conformation of cis-1,3-dimethylcyclohexane:
Q. Explain Distillation in purification of metals? Metals with low boiling points, such as cadmium, zinc and mercury will be purified by distillation. The distillation is gener
Uncertainty principle gave the concept of: (1) Probability (2) An orbital (3)Physical meaning of Ψ the Ψ (4)All the above Ans: Probability
chromotographic method explain
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