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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.
Assainment of liquefaction of gases in degree 2 nd sem
Which of the following is not true in Rutherford's nuclear model of atom: (1) Protons and neutrons are present inside nucleus (2) Volume of nucleus is very small as compared
what is the solvent effect on transition metal?
A tank contains 50 gal of a solution of NaCl in water (20% wt). To wash the tank, we supply fresh water at 10 gal/min and drain the tank at the constant rate of 10 gal/min. Determi
Chemical Properties of Aromatic Nitro Compounds Resonance in nitrobenzene pass on a partial double bond character to the bond among carbon of benzene nucleus and nitrogen of th
In the discussion it asks, what is a possible extension that can be cinsidered, can u please help me , thanks :)
CATALYSTS A catalyst is a species that speeds up a chemical reaction but is not itself consumed. Catalysts do not change the thermodynamics of the position of equilibrium or a
What are the limitations of valence bond theory?
PHOSPHORUS, ARSENIC AND ANTIMONY The bigger elements in the same group (15) as nitrogen are usually known as 'pnictogens' and their compounds with metals as 'pnictides'. Althoug
What volumne of 10.83 M HNO3 is required to prepare 683 mL of a 1.9 M HNO3 solution? Answer in units of mL
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