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(a) Starting from a sample of chromate ore, how is potassium dichromate prepared? Explain all the steps included with chemical equations.
(b) Write the balanced chemical equation for the reaction among an acidified solution of potassium dichromate and potassium iodide.
Q. Differentiate the thermoplastic and thermo sets. OR Write note on thermoplastic and thermosetting plastic resins. Ans. T
name the smallest element that has all properties of an element
Why phenol does not react with sodium carbonate & sodium bicarbonate? Reason: This is because Phenol is less acidic than H 2 CO 3 and hence the reaction doesnt takes place.
Show that wavefunction ψ1(x) = (2/L) 1/2 sin(πx/L) of a particle in a box is an eigenfunction of the operator d 2 /dx 2 and also calculate the corresponding eigenvalue.
what is stability of colloids?
Calculate the combustion energies for the burning of 1 mol of propane and butane. It can be supposed that all reactants and products are obtained under standard conditions.
Electron configurations are governed by a limitation called as the Pauli Exclusion Principle: No two electrons can have the same value for all four quantum numbers n, l, m a
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1. Write an easy on the classification of Phylum Protozoa, a large phylum comprising approximately 50,000 species. (10marks)
What is the principle of determining acid insoluble ash content of flour
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