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Q. How can we obtain Boron? Boron is- obtained by the red-action of B 2 O 3 with magnesium or sodium B 2 0 3 is first prepared by strongly katingH 3 B0 3 which is obtained b
Uses of Benzene - Hydrocarbon (1) In dry cleaning (2) As a motor fuel when mixed with petrol. (3) As a solvent. (4) In the manufacture of gammexane (As insecticide).
Uses of Catechol Catechol finds use as photographic developer and in the manufacture of alizarin and adrenaline hormone and like an antioxidant (inhibitor in auto oxidation) fo
what is the properties of alkenes and alkynes
Explain CMR spectrum 2,2-Dimethyl-1-propanamine (neopentylamine, (CH 3 ) 3 CCH 2 NH 2 ) has a maximum of three resonances in its CMR spectrum. 2-Methyl-2-butanamine, CH 3 CH 2
Q. Describe Lime-soda method for softening of hard water. Discuss the advantages of the process and the chemistry involved in it.
I have 4 assignments for unit 22 chemistry btec level. Are you able to do my assignments by friday?
Q. Define shelf life? Shelf life is the time between the production and packaging of the product and the point at which it becomes unacceptable under defined environmental cond
Q. Define Alcoholic Acidity? Alcoholic acidity is defined as mg of H 2 SO 4 required for 100 g of the sample to have the same alcohol soluble acids. Grains or their milled
Number of nodal centres for 2s orbital: (1) 1 (2) 0 (3) 4 (4) 3 Ans: 1
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