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In Which of the following the double bon...

In Which of the following the double bond consistts of the pi bonds .

A

`O_(2)`

B

`Be_(2)`

C

`C_(2)`

D

`S_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Double bond in `C_(2)` consists of both pi bonds because of the presence of `4 e^(-') s` in two `pi -MO' s` In most of the other molecule a double bond is made up of a single `sigma` bond a `pi` bond .
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CENGAGE CHEMISTRY-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Exercises Single Correct (Molecular Orbital Theory (Mot))
  1. The species which does not show paramagnetism is .

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  2. Which of the following cannot exist on the basic of MO theory ? .

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  3. Which one paramagnetic and has a bond order of 0.5 ? .

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  4. The bond energies NO,NO^(o=) and No^(Theta) ion the highest occupied o...

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  5. In the MO diagram for O(2)^(Theta) ion the highest occupied orbital is...

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  6. Which of the following is not diamagnetic ? .

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  7. The bond order of CO and NO is .

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  8. Combination of two AO s lead to the formation of .

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  9. The possible molecular orbital formed when two d-orbitals overlap is .

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  10. Which of the following species exhibits the diamagnetic behaviour ?

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  11. Which of the following species is paramagnetic ? .

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  12. The bond order in NO is 2.5 while that in NO^(o+) is 3 Which of the fo...

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  13. When two AO s combine energy of bonding MO is lowered by x while of an...

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  14. In Which of the following the double bond consistts of the pi bonds .

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  15. Which of the following MOs has more than one nodal plane?

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  16. Which of the following MO's has zero nodal planes ? .

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  17. The main axis of diatomic molecule is z. The orbitals px and py overla...

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  18. The paramagnetic property of the oxygen molecule is due to the presenc...

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  19. Which of the following combination is not allowed in the LCAO method f...

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  20. The energy of sigma(2s), is greater than that of sigma(1s)^** orbital ...

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