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Cross linked polymers :
1. These are polymers where monomers unit are crosslinked together to make a three dimensional network polymers.
2. These kind of polymers are hard, rigid and brittle due to network structure for example melamine, Bakelite, formaldehyde resin etc.
physical properties of salicylic acid?
what is tyndall effecet? can you give an example
50ml of 0.1M NH 4 OH ,25ml NH 4 Cl weere used to make a buffer . what is the PH is if Pk b is 4.8? Solution) The given buffer is a base buffer [NH4OH] =[(50*0.1)/75] [NH4Cl] =[(
Discuss the effect of substituents on the acidity of phenolic group?
which parameters are analysed to confirm the quality of ghee and what are the values of tested parameters to indicate the quality grade?
(i) Assign appropriate reason for each of observations: (a) Anhydrous ALCI is used as a catalyst. (b) Phosphinic acid behaves as a monoprotic acid. (c) SF6 is not easily h
why YbS and YbI2 are semiconducting solids but LaS and LaI2 show metallic character..
catalyst used in polymerization
The hydration of propene The hydration of propene includes the usual mechanistic steps of alkene protonation to form a carbocation followed by the nucleophilic reaction of wate
what is the relationship between the rate of cooling and the size of crystals?
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