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The table below gives intrinsic viscosity values determined by viscometry and weight- average molar mass values determined under the same conditions by static light scattering.
1. What are the Mark-Houwink parameters for this polymer?
2. Discuss the applicability of the Mark-Houwink model to this polymer?
Biodegradable polymers These are the polymers that are degraded through micro-organisms in an appropriate period so that biodegradable polymers and their degraded products do n
Highest covalent character is found in: (a1 CaF 2 (2) CaCl 2 (3) CaBr 2 (4)
Q. Illustrate Ionic Bonds or electrovalent bond? Ans. An ionic bond (also called an electrovalent bond) is the attraction between oppositely charged ions. Elements from o
Which one is the electronic configuration of Fe +2 : (1) 1s 2, 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 6 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 4 , 4s 2 (3) 1s 2 , 2s 2 ,
Q. Define homogeneous mixture ? A homogeneous mixture is one which has a constant composition throughout. By mixed sugar in water you create a homogeneous mixture. A homogeneo
Generation of the electrophile : The electrophile is the carbocation produced by protonation of the alcohol oxygen and loss of water.
Q. Illustrate crystal field splitting in octahedral complexes? Initially in a free ion state (I) all the orbitals are in degenerate state. In state (11), all the five orbitals
Explain the Liquid Water aspect of using phase rule? For a single phase of pure water, P equals 1. If we treat the water as the single species H 2 O, s is 1 and r is 0. The pha
two reasons why is it necessary to ionise chromium atomsin a sample
what is the order of solubility of alkali metal hydrides and halides
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