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Classification of polymers - Fibres These are the polymers that comprise strong intermolecular forces among the chain. These forces are either hydrogen bonds or dipole-dipole i
Test of glucose - Biomolecules (a) While heated in a waterless test tube, it melts, turns brown and finally black, provoding a characteristic smell of burnt sugar. (b) While
A water solution contains 64% Na 2 S 2 O 2 together with 1.0% soluble impurity. Upon cooling to 5°C, Na 2 S 2 O 2 ·5H 2 O. crystallizes out. The solubility of this hydrate is 1.35
Calculate the activity of nuclides: Problem: 100 mg piece of a gold ornament containing 10% copper as impurity was irradiated with thermal neutrons at 2.1×10 11 n/cm 2
classification of mixture according to particle size, uniform mixture, composed of solute and solvent
Q. why is sodium aluminates is a better coagulates then ferrous sulphates or alum? Ans. Sodium aluminates (NaAlO 2 ): It is better coagulant than FeSO 4 and alum because i
1. Acetylation of key proteins is known to correlate with the gene expression in eukaryotes. What class of chromatin proteins is modified? What is the chemical nature of the acetyl
Which is the correct relationship between wavelength and momentum of particles: (1) γ= h/ p (2) Π h/ p (3) p= h/ γ (4) h= p/ γ Ans: γ= h/ p
Interfacial Defects Grain boundaries are interfaces where crystals of dissimilar orientations meet. A grain boundary is a single-phase interface, with crystals on each n every
what are atoms made of ?
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