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In a molecule of ethyne, the number of p...

In a molecule of ethyne, the number of `pi` antibondding molecular orbitals is

A

1

B

2

C

3

D

4

Text Solution

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The correct Answer is:
B
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This question has statement I and Statement II. Of the four choices given after the statements, choose the one that best describes the two Statements. (1) Statement-I is true, Statement-II is true, Statement-II is a correct explanation of Statement-I (2) Statement-I is true, Statement-II is true,Statement-II is not a correct explanation of Statement-I (3)Statement-I is a true , Statement-II is false (4) Statement-I is false, Statement-II is true Statement 1 : Fluorine molecule has bond order one . Statement 2 : The number of electrons in antibonding molecular orbital is two less than that of bonding molecular orbitals.

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PATHFINDER-CHEMICAL BONDING AND MOLECULAR STRUCTURE-QUESTION BANK
  1. Which of the following options represents the correct bond order?

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  2. Main axos of a diatomic molecule is Z orbitals Px and Py of two atoms ...

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  3. In a molecule of ethyne, the number of pi antibondding molecular orbit...

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  4. In diborane (B2H6) the stability of B-H-B (3c-2e) bond can be explaine...

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  5. Which of the following combination will give the strongest ionic bond ...

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  6. In NO3^- ion, the number of bond pairs and lone pairs of electrons on ...

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  7. Number of sigma-bonds and pi-bonds in the following structure is

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  8. In which of the following molecules/ions all the bonds are not equal ?

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  9. If the electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^...

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  10. Stable form of A may be represented by formula [A is a member of inert...

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  11. Stable form of C may be represented by formula [C is a member of halog...

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  12. The molecular formula of the compound formed between B and C will be [...

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  13. The bond between B and C will be [B and C are the member of group 15 a...

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  14. Which of the following would result in the formation of strongest pi-b...

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  15. The type of d-orbital involved in sp^3d hybridisation is

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  16. In which of the following there is change in the type of hybridization...

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  17. If MX3 is T shaped, then the number of lone pair around M is

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  18. Which of the following species have same shape and same bond order ?

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  19. Isostructural species are those which have the same shape and hybridis...

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  20. The types of hybrid orbitals of nitrogen in NO2^+ NO3^- and NH4^+ resp...

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