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Degensrate atomic orbitals have :...

Degensrate atomic orbitals have :

A

equal energy in absemce of magnetic field

B

nearly equal energy

C

different energy

D

equal in presence of magnetic field

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The atomic orbital is:

Define an atomic orbital

According to the moleular orbital theory, all atomic orbitals combine to form molecular orbital by LCAO (linear combination of atomic orbitals) method When two atomic orbitals have additive (constructive) method When two atomic orbitals have additive (constructive) overlapping they form bonding molecular orbitals (BMO) which have lower energy than atomic orbitals whereas when atomic orbitals overlap subtractive higher energy antibonding molecular orbitals (ABMO) are formed Each MO occupies two electrons with opposite spin Distribution of electrons in MO follows Aufbau principle as well as Hund's rule MO theory can successfully explain the magnetic behaviour of molecules O_(2)^(2-) will have .

Atomic orbitals of bonded atoms combine to form molecular orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals taking part in the bond formation. When two atomic orbitals combine, two molecular orbitals are formed one of which has lower energy than the combining orbitals and is called bonding Molecular Orbital (MO). Whereas the other having higher energy than the two combining atomic orbitals is called Anti Bonding Molecular orbitals (ABMO) The two combining atomic orbitals must have comparable energies and should be properly oriented to allow considerable overlapping. If the overlapping is end to end along internuclear axis, the molecular orbital is called sigma and if the overlapping is lateral 1.e., sidewise the molecular orbital is called pie. Just like atomic orbitals, the molecular orbitals also have varying energy levels. Filling of electrons in molecular orbitals takes place following the same rules as followed for filing of atomic orbitals. The order of filling may not be same for all the molecules or their ions. Bond order is a useful parameter for comparing the various characteristics of molecules. Which of the following pair is expected to have the same bond order ?

According to the moleular orbital theory, all atomic orbitals combine to form molecular orbital by LCAO (linear combination of atomic orbitals) method When two atomic orbitals have additive (constructive) method When two atomic orbitals have additive (constructive) overlapping they form bonding molecular orbitals (BMO) which have lower energy than atomic orbitals whereas when atomic orbitals overlap subtractive higher energy antibonding molecular orbitals (ABMO) are formed Each MO occupies two electrons with opposite spin Distribution of electrons in MO follows Aufbau principle as well as Hund's rule MO theory can successfully explain the magnetic behaviour of molecules Which of the following is/are not paramagnetic ? .

GRB PUBLICATION-QUANTUM NUMBERS AND GENERAL CHEMISTRY-B.
  1. Which is a possible set of quantum numbers for the unpaired electrons ...

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  2. Principal azimuthal , and magnetic quantum numbers are respetively r...

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  3. Degensrate atomic orbitals have :

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  4. How many maximum electrons can be dessribed by the quantum number n=5...

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  5. Any p- orbital can accomedate upto:

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  6. which type of orbital is designated by n=2,l=3,m(1)=-2?

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  7. which of the following statements regarding subdhell filling for s neu...

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  8. Out of the following orbitals which have nodal plane perpendiclar to t...

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  9. total number of possible unique sts of gour quantum numbers in the 5th...

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  10. Which combinations of quantum number n,l,m,s for the electron in an a...

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  11. Maximum number of orbitals are present for which of the following set ...

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  12. m=- 1 is not possible for :

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  13. the highest probability of finding the electron in an orbital having v...

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  14. the maximum number of electrons that can be accommodated in the M^(th)...

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  15. If an elevtronsd has spin quantum number of =(1)/(2) and magnetic qua...

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  16. when the quntum number n, l,m,s are represented by 3,3,2,=(1)/(2) the ...

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  17. for a 6s eleectron the vales of n,l,m,s respectiivelty could be :

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  18. Which of the following sets of quantum numbers represents an imposs...

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  19. Priincipal quantum number of an atom represents :

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  20. d(z^(2))0orbital has :

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