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What is vulcanization
The process of vulcanization was discovered by Charles Good Year in 1839. He found that when natural rubber is heated with sulphur, its tensile strength, elasticity and resistance to swelling enhances tremendously. This process is called vulcanization. Vulcanization process brings stiffening of the rubber by anchoring and restricting the intermolecular movement of rubber chains. Tensile strength enhances, resilience enhances, and becomes more resistant to water, organic sol- vents, light and air.
Applications of hybridisation - Size of the hybrid orbitals As s- orbitals are closer to the nucleus than p- orbitals, it is reasonable to suppose that greater the s character
Q. What are the primary factors of influence solubility? Ans. Solubility is the extent to which a solute dissolves in a solvent. Solutions that have larger quantities of
which of the following is not a characteristic of plunck''s quantum theory of radiation? A) Radiation are associated with energy B) A body can emit less or more than a quantum of e
Classification of carbon molecules in organic compounds The carbon atoms in an alkane molecule may be categorized into four types namely Primary (1 o ), Secondary (2 o ),
application of electromeric effect
A reaction has a rate constant of 1.22x10^-4 /s at 28 C and 0.230 /s at 75.0 C. 1. Determine the activation barrier for the reaction in kj/mol. 2. What is the value of the rate co
Q. Show the diffrent kind of matter? Liquid matter has a specific volume like a solid but flows and takes the shape of its container. A liquid is incompressible for the reaso
what are instrumentation of cyclic voltametry
Thermoplastic: These polymer gets soften on heating and can be converted into any shape that they can retain on cooling. Such polymers that soften on heating and stiffen on coolin
the measured dipole moment of-para nitroaniline (6.2D) is larger than the value calculating using empirical group moment (5.2D)
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