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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.
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
why does sulfuric acid get hotter when you neutralise it
thermodynamics help to be a good chemist
Dyes Dye is a synthetic and natural colouring matter that is employed in solution to stain materials particularly fabrics. All the coloured substances are not dyes. A coloured
laws of chemical combination
why ionisation energy of aluminium is greater then Ga?
what is an atom
IONS IN AQUEOUS SOLUTION Ionic models : Ions are charged chemical substance. Positively charged ions are called cations as they travel to the cathode of an electrolytic c
during the process of extraction of pure copper from copper pyrite,SiO2 acts as acidic flux which combines with iron oxide(FeO) to form iron silicate(FeSiO3). CuFeS2 + heat ---> Cu
Q. Define Allotropic forms? All the elements of the group show allotropy. Oxygen exists in two allotropic forms. Dioxygen. 02, is a diatomic gas, paramagnetic in nature. Lewis
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