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Modern Meaning of Organic Chemistry
Organic chemistry is a chemistry of hydrocarbons and their derivatives where covalently bonded carbon is a necessary constituent. Berzelius put forward a theory in year 1815 termed as vital force theory. It describes that, "organic compounds could be prepared just only by living organism within the influence of a mysterious force termed as vital force". Accidental synthesis of urea from Wohler and synthesis of acetic acid from Kolbe led to the fall of this theory.
Berthelot made methane in laboratory and the mainly abundant organic compound is cellulose that is a polymer of glucose. Kekule and Couper planned the tetravalency of carbon and wrote the first structural formula. In year 1874, Van't Hoff and Le Bell suggested a tetrahedron model of carbon.
The electron pair which forms a bond between two similar non-metallic atoms will be: (1) Dissimilar shared between the two (2) By complete transfer from one atom to other
Q. Explain about Neutral and Amphoteric oxides? Neutral oxides have neither acidic nor basic properties and when dissolved in water, they give neutral solutions, e.g., CO, N
What is Standard deviation? Standard deviation tells about the widely spread out of the measured analytical data points. Highly precised measurements are less standard deviation.
#what are the types of mixtures
primary and secondary cells
what is the relationship between the rate of cooling and the size of crystals?
balance?
What is Fe+HCI
C3N4
HOW TO CALCULATE TITRE FACTOR.
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