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Physical Chemistry

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6 Apr 2009 23:42:11 IST

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378

CHEMICAL BONDING

None

Strongest bond is formed by the head-on overlapping of

(a) 2s and 2p-orbitals

(b) 2p and 2p-orbitals

(d) All of these

Please give the answer giving proper explanation for the same.

I think 2s-2s is not possible since 2s orbitals always form electrovalent bonds. Please explain the full solution. I'll be really thankful.

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aNdRoMeDa

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7 Apr 2009 00:05:16 IST

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XYZ

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7 Apr 2009 00:11:18 IST

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Well, yes the given answer is (b).

Can you please give the explanation part of it??? Why 2s is not there???

aNdRoMeDa

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7 Apr 2009 00:18:03 IST

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itz b cuz in p orbitals u ahv lateral overlappin ..weras in s itz dirctd in all dirctions ......

bt in p itz in only one dirction .........u noe hw p orbitals luk ........... (hopefully)

XYZ

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7 Apr 2009 00:23:33 IST

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Yes, I know that.

But you must have read that 1s-1s sigma bond is stronger than the one formed by p-orbitals. This is due to the fact s orbitals lie close to the nucleus and p are diffused. Then why the answer is different in this case??? Is it because instead of 1s, they have given 2s orbital here???

Please reply.

XYZ

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7 Apr 2009 12:45:15 IST

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Can someone please reply??? I need it urgently.

Experts please reply.

Bags

Hot goIITian

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7 Apr 2009 12:48:00 IST

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coz...the p orbitals are directionally concentrated...whereas s orbitals are spherically symmetrical....

XYZ

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7 Apr 2009 12:51:31 IST

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Is this statement correct or not :- 1s-1s sigma bond is stronger than the one formed by p-orbitals ?

s faiyaz

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8 Apr 2009 21:50:29 IST

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in 2p-2p orbitals it is strongest

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