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The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
why is electron gain enthalpy of oxygen greater than sulphur?
Q. What is basic need of SI Units? Ans: The Importance of Units Units give numbers a particular meaning. Example: I am 5 feet 10 inches tall. Feet and inches are units. I co
Develop a table for the water quality parameters of surface water (rivers and lakes), and groundwater. A sample table is given below: Water quality parameters of different
This cycloaddition reaction involves sixteen electrons; hence, it must be suprafacial on one component and antarafacial on the other. Thus, it must be a [14s + 2a] or a [14a + 2s]
Q) Inside the sun four hydrogen nuclei combine to form a helium nucleus by which cycle? Ans) Proton-proton cycle.
Q. In 1982, the International Union of Pure and Applied Chemistry recommended that the value of the standard pressure p o be changed from 1 atm to 1 bar. This change affects the
Chemical Kinetics of the Peroxodisulfate Ion The peroxodisulfate ion is one of the strongest oxidants that are called, although the oxidation reaction is relatively slow.
Non - ideal solutions exhibit either positive or negative deviations from Roulette's law. What are these deviations and why are they caused? Explain with one example for each t
prepare a project corrosion of iron
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