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Give example of Allotropy
The element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a tetrahedral lattice arrangement, and graphite, where the carbon atoms are bonded together in sheets of a hexagonal lattice.
#ques(a) Given the values below, calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical po
We are asked to design a qualitative analysis scheme that can be used to determine which cations are present in a solution containing only four of the following cations: Pb2+, Ag+,
what could be the distillate present in acetaldehyde after preparation in lab
#formation of salicylic acidquestion..
#sulphuric acid can be made with concentration of 99%.however for diferent industrial requirement ,62% h2so4 is used which has density of 1.55 g/ml.calculate the molarity,molality
how is the material extracted from concentrated ore?
How many electrons can be accommodated in a sub-shell for which n=3, l=1: (1) 8 (2) 6 (3) 18 (4) 32 Ans: 6
5
The mass of a photon with a wavelength equal to 1.54 x 10 -8 cm is: (1) 0.8268 x 10 -34 kg (2) 1.287 x10 -33 kg (3)1.4285x 10 -32 k
addition of different regent in sample of salt changes its colour
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