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Penta valent element has one electron more than 4 electrons which could be used for conduction while the trivalent elements has 1 electron less , this can also be seen as a hole
describe the steps necessary in preparing a standard solution of 1.0 molar NaOH
How to know degree of superheat from psychometric chart?
How many gaseous elements are there in the s block of modern periodic table? What are they??
The formation of a co-ordination compound involves reaction between a metal ion and ligands. If the force of attraction of the metal ion with ligands is strong a stable complex may
how we synthesis picric acid why it required 1 hour for the reaction with HNO3,H2SO4 and show the mechanism of picric acid and uses of picric acid. and what is the role of HNO3,H2S
1.which of the following is f-block element /
about occurence,properties of the following metal copper.gold,mercury
Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 , -CN, -CHO, -COOH) on the benzene ring increases
why they are called noble gases
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