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Identify the least stable among the foll...

Identify the least stable among the following

A

`Li^(-)`

B

`Be^(-)`

C

`B^(-)`

D

`C^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Li^(-)=1s^(2)2s^(2)`
`Be^(-)=1s^(2)2s^(2)2p_(y)^(1)`
`Be^(-)=1s^(2)2s^(2)2p_(x)^(1)2p_(y)^(1)`
`C^(-)=1s^(2)2s^(2)2p_(x)^(1)2p_(z)^(1)`
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DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -JEE (JOINT ENTRANGE EXAMINATION) ADVANCED COMPREHENSION LINKED MCQs
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  2. The bond between two identical non-metal atoms has a pair of electrons...

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  8. The cyanide ion CN and N(2) are isoelectronic, but in contrast to CN^(...

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  9. The geometry of H2 S and its dipole moment are :

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  10. The hybridization of atomic orbitals of nitrogen is NO(2)^(+), NO(3)^(...

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  11. The common features among the species CN^- , CO and NO^+ are :

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  12. Identify the least stable among the following

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  13. Which of the following are iso-electronic as well as is structural ? ...

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  15. The bond angle in H(2)S "is" 92^(@). It suggest that :

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  16. The species having bond order different from that in CO is

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