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why a small amount of an acid is added while preparing solution of potassium dichromate?
#sulphuric acid can be made with concentration of 99%.however for diferent industrial requirement ,62% h2so4 is used which has density of 1.55 g/ml.calculate the molarity,molality
Properties of Bi-phenyl - Hydrocarbon Bi-phenyl is a colourless solid, melting point 71°C. It goes through usual electrophilic replacement reactions. As aryl set are electron w
what is rayon?what are the things made of it?
Q. Describe Lime-soda method for softening of hard water. Discuss the advantages of the process and the chemistry involved in it.
Q. What do you mean by Dietary fibre? Dietary fibre is an imporatant ingredient in food and comprises of a diverse group of plant substances viz. celluloses, hemicelluloses, l
Write the neutral calcium atom has a number The neutral calcium atom has a number of valence electrons euivalent to its group number, that is 2.
In the industrial production of sulphuric acid, SO 3 is carefully reacted with water: SO 3 + H 2 O → H 2 SO 4 any excess SO 3 giving rise to what is called oleum, a solut
Cleaning action of soap and detergents
Give the name of the molecular shape of each of the following. (1 mark each) 1) silicon tetraiodide
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