chemical bonding Flashcards

1
Q

molecular orbitals are polycentric/monocenric

A

polycentric

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2
Q

soem properties of molecular orbital

A

only atomic orbitals of same energy combine to form molecular orbitals,the electrons occupy molecular orbitals,obeys hunds aufbau and pauli

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3
Q

wahtis molecular orbital

A

the probability of finding electron in molecule is highest in molecular orbital

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4
Q

how are mo fromed

A

combination f atomic orbitals

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5
Q

repulsion of nucleus is less in which mo

A

bonding mo therfore energy is less and electron repulsion on abmo is high energy increases

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6
Q

what happens to the toala energy when mo id fromed

A

the energy of molecular orbitals is same as when is was atomic

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7
Q

can 2px and 2py combine because they have same energy

A

no even though they have same energy their symmetry is diferent

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8
Q

electron density mut be maximum in mo

A

treu

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9
Q

which bond is symmetric

A

sigma

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10
Q

why are pi bonds unsymmetric

A

because they have +ve and -ve lobes above and below the bond axis

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11
Q

what is the differnec in B2 AND O2

A

the 2pz orbital has more energy than the pi orbitals for B2

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12
Q
A
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