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The least stable ion among the following...

The least stable ion among the following is

A

`Li^(-)`

B

`Be^(-)`

C

`B^(-)`

D

`C^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Be^(-) : 1s^2, 2s^2, 2p^1 (EA_2 = + ve)`
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NARAYNA-CHEMICAL BONDING AND MOLECULAR STRUCTURE-EXERCISE -4
  1. Specify the coordination geometry around and the hybridisation of N an...

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  2. Which of the following is paramagnetic ?

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  3. The least stable ion among the following is

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  4. Which of the following molecular orbital has two nodal planes perpendi...

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  5. The O-O bond length in O2, O2 [AsF4] and K [O2] is :

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  6. KF combines with HF to form KHF(2). The compound contains the species

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  7. Among the following mixiture dipole-dipole as the mojor interaction is...

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  8. The nodal plane in the pi-bond of ethene is located in:

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  9. In the dichromate dianion,

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  10. Which of the following overlap is correct?

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  11. The values of electronegativity of atom A and B are 1.20 and 4.0 respe...

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  12. Isostructrual species are those which have the same shape and hybridis...

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  13. Polarity in a molecule and hence the dipole moment depends primarily o...

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  14. Hydrogen bonds are formed in many compounds e.g. H(2)O, HF, NH(3). The...

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  15. Which molecule/ion out of the following does not contain unpaired elec...

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  16. In which of the following molecule/ion, all the bonds are not equal?

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  17. In which of the following substances will hydrogen bond be strongest ?

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  18. Which of the following orderof energies of molecular orbitals of N(2) ...

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  19. Which of the following statement is not correct from the view point of...

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  20. Which of the following statements are correct about CO(3)^(2-)?

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