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Q. Detect the presence of synthetic food colours in the given samples? Objectives After conducting this activity, you will be able to: • describe the kind of natural
Tests for acetone - Indigo test and Iodoform test (a) Indigo test: When a small amount of orthonitrobenzaldehyde is added to approximately 2 ml. of acetone and it is diluted al
Quantitative elemental analysis: The instrument used for AFS consists of atom reservoir that might be a flame or a furnace etc., a basic source emitting the features absorptio
Polyhydroxy butyrate (PHB) Polyhydroxy butyrate or PHB is acquired from hydroxy butyric acid (3-hydroxy butanoic acid)
Electron occupies the available orbital singly before pairing in any one orbital occurs, it is : (1) Pauli's exclusion principle (2) Hund's Rule (3) Heisenberg's principle
What are photochemical reactions? Explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine gas.
Calculate how the internal energy stored in one O-H bond of H20 Consider the following chemical reaction H20(g)-->2H(g) + O(g) at 298.15 K and 1.00 Bar fH* [H(g)]=218.0 kJ/mole fH*
Resonance effect or mesomeric effect (1) The effect where electrons are transferred from a multiple bond to a molecule, or from a multiple bond to a one covalent bond or lone p
The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state
General Tests on Benzoic Acid (a) It dissolves in hot water but separates out in the form of white shining flakes on cooling. (b) Benzoic Acid evolves CO 2 with sodium bica
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