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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.
explain the construction and working of calomel electrode
The number of unpaired electrons in carbon atom in excited state is: (1) One (2) Two (3) Three (4) Four Ans: Four
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The following has zero valency : (1) Sodium (2) Beryllium (3) Aluminium (4) Krypton Ans: Krypton
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Purification of raw water for domestic use involve following process: (1) SCREENING: T he raw water is passed through screens having large number of holes where floati
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