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The principal quantum number represents:
(1) Shape of an orbital
(2) Distance of electron from nucleus
(3) Number of electrons in an orbit
(4) Number of orbitals in an orbit
Ans: Distance of electron from nucleus
explain Berzelius hypothesis and contradiction of daltons hypothesis with an example
The amount of energy needed to convert one mole of solid substance to vapor state is known as Sublimation energy
why lanthanides and actinides are known as inner transition elements
Borazole is very stable because it is aromatic; each nitrogen contributes two p electrons and each boron contributes zero electrons, for a total of six p electrons in the aromatic
Why liquids rise in the cappilary tube ? Explain.
Alkyl halide on reaction with dry silver oxide
What are the Stages of heat treatment process All heat treatment processes comprises 3-main steps: (i) Heating of metal/alloy to the predetermined (definite) temperature.
Physical properties of Salicylic acid (i) Salicylic acid is a colourless needle shaped crystalline compound. (ii) Salicylic acid's m.p. is 156°C. (iii) Salicylic acid is
Why the kmno4 is colored.?
Q. For a homogeneous reaction in which the reactants and products are solutes in a solution, write a rigorous relation between the standard molar reaction enthalpy and the temperat
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