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Analysis of oils and fats - Acid value
It points out the amount of free acid present in the oil or fat. It is described as the number of milligrams of KOH needed to neutralize the free acid exists in one gram of the oil or fat. It is ascertained by dissolving a weighed quantity of oil / fat in alcohol & titrating it against a standard solution of KOH by using phenolphthalein like an indicator.
Q. Define Oxidation state of an atom? Oxidation State: Oxidation state of an atom is defined as an apparent or formal charge on that particular atom in a molecule. In majorit
Every substance poses exact amount of energy known as internal energy or intrinsic energy (E).
Lassaigne method This is employed to detect halogen, nitrogen and sulphur. Organic compounds are fused along with dry sodium in a fusion-tube and fused mass after extraction wi
In the formation of Nacl from Na and cl: (1) Sodium and chlorine both give electrons (2) Sodium and chlorine both accept electrons (3) Sodium loses electron and chlori
How is chemistry important in medicine & healthcare?
Question 1 Write a short note on the following Photoelectric effect Transition Elements Hydrogen bonding Standard entropy Question 2 What are aromatic acids
PbO2 + Cl_ gives Pb(OH)3_ + ClO_
A 4-m long curved gate is located in the side of a reservoir containing water as shown in Figure. Determine the magnitude of the horizontal and vertical components of the force of
The diffusion current for a standard 1 x 10-4 M solution of hydroquinone is found to be 17.5 µA. An unknown solution of hydroquinone, when diluted tenfold and analysed under simila
theory of the acidic and basic radicals in different chocolates
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