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Q. a. What is the origin of fossil fuels? b. List three fossil fuels. c. Are fossil fuels a renewable resource? Answer: a. Coal, natural gas and oil. b. Fossil fue
Preparation of dihydric alcohols
The charge on the atom containing 17 protons, 18 neutrons and 18 electrons is: (1) +1 (2) -2 (3) -1 (4)Zero Ans: -1
Express the relation among the half-life period of a reactant and its initial concentration if the reaction involved is of second order. How are formalin and trioxane related to
Time-of-entry experiments indicate that a gene for resistance to kanamycin, kan-r, is closely linked to a gene for resistance to bacteriophage T5, T5-r. A geneticist has strains of
Q. Example of octahedral complexes? Let us now turn our attention to the complexes having transition metal ion with d 2 or d 3 electrons. With these configurations, there are
Molecular weight of orthophosphoric acid is M. Its equivalent weight is
Halides Transition metals react with halogens at high temperatures to form halides. These reactions have very high activation energies; therefore, high temperatures are requ
amphoterism of methanol Compound A is much more basic than compound B (charge effect). By the element effect, C is much more basic than A; this follows from the fact that if we
As compared to covalent compounds, electrovalent compounds generally have: (1) Low melting points and low boiling points (2) Low melting points and high boiling points (3
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