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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.
what do you mean by the terms chromogen,auxochrome,bathochrome and hyposochrome?what role do they play in relation to colour and constitution?
The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10 -13 A 1/3 cm Radius of atom is one A. If the mass number
(a) Derive a relationship between the elevation in boiling point of a solution and the mole fraction of the solute from the thermodynamic consideration. (b) The molal elevatio
how to find equivalent weight of a molicule
The fresh feed to an ammonia production process contains nitrogen (N 2 ) and hydrogen (H 2 ) in stoichiometric proportion, along with an inert gas (I). The feed is combined with
please help me to do assignment about noble gas.
what is meant by polarizability
define
The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
Face cetered cubic structure In FCC structure, the atoms are situated at each of the eight corners and at the centers of all cube faces of the unit cell. Every face centered at
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