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Can 1s and 2s atomic orbitals from molec...

Can 1s and 2s atomic orbitals from molecular orbitals

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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. In the formation of N_2^+ from N_2 , the electron is removed from

Which type of atomic orbitals can overlap to from molecular orbitals ?

Molecular orbitals are formed by the overlap of atomic orbitals. Two atomic orbitals combine to form two molecular orbitals called bonding and antibonding MO s . The molecular orbitals are filled with electrons following the same rules as followed for filling of atomic orbitals. The molecular orbitals electronic configurations help us to calculate bond order when which give important information about bond strength and bond length. Which out oof O_(2)^(+) and O_(2)^(-) is more stable?

Molecular orbitals are formed by the overlap of atomic orbitals. Two atomic orbitals combine to form two molecular orbitals called bonding and antibonding MO s . The molecular orbitals are filled with electrons following the same rules as followed for filling of atomic orbitals. The molecular orbitals electronic configurations help us to calculate bond order when which give important information about bond strength and bond length. Why are H_(2)^(+) ions more stable than H_(2)^(-) ions, though they have the same bond order?

Molecular orbitals are formed by the overlap of atomic orbitals. Two atomic orbitals combine to form two molecular orbitals called bonding and antibonding MO s . The molecular orbitals are filled with electrons following the same rules as followed for filling of atomic orbitals. The molecular orbitals electronic configurations help us to calculate bond order when which give important information about bond strength and bond length. Why does Be_(2) molecule not exist?

Molecular orbitals are formed by the overlap of atomic orbitals. Two atomic orbitals combine to form two molecular orbitals called bonding and antibonding MO s . The molecular orbitals are filled with electrons following the same rules as followed for filling of atomic orbitals. The molecular orbitals electronic configurations help us to calculate bond order when which give important information about bond strength and bond length. Which has smaller bond length No or NO^(+) ?

2s and 2p- atomic orbitals combine to give how many molecular orbitals ?

According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbital formed. Number of atomic orbitals overlapping together is equal to the molecule orbital formed. The two atomic orbital thus formed by LCAO (linear combination of atomic orbital) in the phase or in the different phase are known as bonding and antibonding molecular orbitals respectively. The energy of bonding molecular orbital is lower than that of the pure atomic orbitals by an amount Delta . This known as the stabilization energy. The enerby of antibonding molecular orbital in increased by Delta' (destabilisation energy). Q. How many nodal plane is present in sigma_(s and p) bonding molecular orbital ?

DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -PROMBEMS FOR PRACTICE
  1. Can a sigma bond be formed in the absence of pi bond ?

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  2. Can orbitals present in the 2p sub-sheel hybridise alone ?

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  3. What types of hybridisation are associated with central atom when the ...

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  4. Write the state of hybridisation of boron in BF(3^.)

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  5. How many sigma and pi bonds are present in the molecule of ethene ?

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  6. Mention the state of hybridisation of all the carbon atoms in he molec...

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  7. Assuming z-axis to be intermolecular axis, designate the molecule orbi...

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  8. Which of the follwing combinations are not permisible ? (i) 2pz and ...

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  9. Which combination will lead to pi-molecular orbitals ? (i) 2px-2px (...

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  10. Can 1s and 2s atomic orbitals from molecular orbitals

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  11. In the molecular orbital configuration of N(2) which orbital has lower...

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  12. What is the bond order of H(2)^(-) ion ?

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  13. Arrenge O(2),O(2)^(-),O(2)^(2-),O(2)^(+) in increasing order of bond e...

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  14. What will happen to the bond order if the electron is added ot bonding...

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  15. Why does a molecule of Ne(2) fail to exist ?

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  16. Predict the stability of a molecule if N(a) gtN(b).

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  17. What type of magnetic behaviour is shown by a molecule containing unpa...

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  18. Name a molecule for which bond order is 3.

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  19. Out of O(2) and O(2)^(-) ion which has smaller bond order ?

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  20. Do H(2)^(+) and H(2)^(-) ions have same or different bond orders ?

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