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Correct configuration of Fe +3 [26] is: (1) 1s 2 , 2s 2 , 2p 6, 3s 2, 3p 6 , 3d5 (2) 1s 2 , 2s 2, sp 6 , 3s 2 , 3p 6 , 3d 3 , 4s 2 (3) 1s 2 , 2s 2 , 2p
Electron occupies the available orbital singly before pairing in any one orbital occurs, it is : (1) Pauli's exclusion principle (2) Hund's Rule (3) Heisenberg's principle
Resonance effect - Effect of substituents on acidity Same as inductive effect, if the resonance producing group exerts minus effect that is, if it withdraws electrons, it raise
Explain with appropriate diagrams the lever rule and Tie-line rule. Compositions of two coexisting phases of a binary system are given by tie-line rule. For overall composition
fitration
what are the characteristics of s block elements?
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
SIr Plzz do guide me that why only 7 groups of transition element are used for salt analysis ? Others are not used for salt analysis...mean other tranistion elements?
The extraction of sodium metal
For 1D particle in a box wave functions in a box of length L, evaluate a formula for the average energy in terms of the quantum number n: =?0L?*Hˆ?dx
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