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Teflon - Halogen Derivatives
1. Teflon is plastic such as substance produced by the polymerisation of tetrafluoroethylene (CF2 = CF2).
2. Tetrafluoroethylene is made while chloroform is treated along with antimony trifluoride and hydrofluoric acid.
3. On polymerisation tetrafluoroethylene makes a plastic-like material that is called teflon.
4. Chemically Teflon is inert molecules. It is not influenced by hard acids and even by boiling aqua-regia. It is invariable at high temperatures. It is, thus, required for electrical insulation, creation of gasket materials and non-sticking frying pans.
Calculations of Volumetric analysis The subsequent points should be kept in mind while making calculations of volumetric exercises. (i) 1g equivalent mass of a substance car
Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
Q. What is Spontaneous processes? Ans. Spontaneous processes are events which occur without any assistance. When an object is held above the floor, it falls when released. Ic
Q. Define Ionisation Isomerism? Ionisation Isomerism: when coordinated ions exchange positions with ions present in the lattice position, we get ionisation isomers. Thus comp
It is stated that Bohrs theory is applicable to hydrogen like ions.why? Ans) It is not stated in bohr''s theory but it is a drawback of his theory. The reason for this is
what do mean by colloids
Briefly tell me about chemical combination and its laws
calculate the concentration of the Naoh solution you have prepared on the basis of the measured mass of the pellets used in the solution volume
DIFFRACTION BY SOLIDS Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The
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