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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.
equation ..
Principle of atomic emission spectrometry: The analyte sample is introduced into the centre of the plasma as an aerosol with the help of a nebuliser using argon flow. In the p
(a) Starting from a sample of chromate ore, how is potassium dichromate prepared? Explain all the steps included with chemical equations. (b) Write the balanced chemical equatio
#space lattice, unit cell, calculation of particles per unit cell, laws of crystallography, symmetry elements in crystals, derivation of braggs equation#
The specific charge of proton is 9.6 X 10 6 CKG -1 then for an α-particle it will be : (1) 38.4X 10 7 Ckg -1 (2) 19.2x 10 7 Ckg -1 (3) 2.4 x 10
A solvated electron is a free electron in (solvated in) a solution, and is the least possible anion. Solvated electrons happen widely although they are often not practical directly
what is p block element
how much glucose C6H12O6 you need to start with to prepare 4.6 times 10 to power 4 Kg of C2H5OH if the yield in the reaction is %64.5 C6H12O6+3O2= 4CO2+C2H5oh+3H2O
Formula of a metallic oxide is MO.The formula of its phosphate will be: (1) M 2 (PO 4 ) 2 (2) M (PO 4 ) (3) M 2 (PO 4 ) (4) M 3 (P
sulphuric acid can be made with concentration of 99%. However for different industrial process different concentration are used. For a specific industrial requirement, 62% H2SO4 is
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