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The statements:(1) In filling a group of orbitals of equal energy, it is energetically preferable to assign electrons to empty orbitals rather than pair them into a particular orbital.(2) When two electrons are placed in two different orbitals, energy is lower if the spins are parallel.are valid for
(1) Aufbau principle
(2) Hund's rule
(3) Pauli's exclusion principle
(4) Uncertainty principle
Ans: Hund's rule
classification corrosion
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please teach me organic chemistry in a better that i could get 99 percent marks
does the nature of the anode rays depend upon the nature of the discharge tube and the nature of the electrode?
Q. Explain the working of chemical cell ? Ans. A chemical cell can be set up by dipping two different metals in an electrolyte and connecting the two metals with an external
In any atom which sub-shell will have the highest energy in the following : (1) 3p (2) 3d (3) 4s (4) 3s Ans: 3d
Hell Volhard-zelinsky reaction In presence of Red P and diffused light or Hell Volhard-zelinsky reaction Carboxylic acid comprising an α-hydrogen react with Cl 2 or Br 2 i
conclusion on colloid
Which of the following atoms and ions are isoelectronic i.e. have the same number of electrons with the neon atom: (1) F - (2) Oxygen atom (
How do i figure out number of protons available for reaction with OH- in a oxalic acid+NaOH reaction?
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