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The electrons would go to lower energy levels first and then to higher energy levels according to which of the following:
(1) Aufbau principle
(2) Pauli's exclusion principle
(3) Hund's rule of maximum multiplicity
(4) Heisenberg's uncertainty principle
Ans: Aufbau principle
Which one of the following compound is ionic: (1) KCl (2) CH 4 (3) Diamond (4) H 2 Ans: KCl
Discuss the effect of substituents on the acidity of phenolic group?
ACCOUNT FOR THE STABILITY OF CONJUGATED DIENES
Copper=54.1%, oxygen=20.1% and the balance sulfur. Could this also be the molecular formula? What other data is needed?
Borax bead test : The transparent glassy bead while heated along with inorganic salt and the colour produced gives some idea of cation present in it. Table:
The maximum energy is present in any electron at: (1) Nucleus (2) Ground state (3) First excited state (4) Infinite distance from the nucleus Ans: Infinite dis
mention the basic tendency of an atom which makes it to combine with other atoms.
Liquid phase cracking - Hydrocarbon In that type of cracking, the residual oil or heavy oil is cracked at a high temperature that is from 475 to 530 o C under high pressure fro
why does sulfuric acid get hotter when you neutralise it
what is the chemical raction of a titration using sodium hydroxide and phenophthalein?
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