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Organic Chemistry

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6 Jun 2012 11:05:38 IST

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Stability order

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1. Hw is it that I^- more stable than F^- , despit the fact that Iodine is less electronegative than Fluorine and negative charge on more electronegative element is more stable?

2. Hw does intermolecular and intramolecular Hydrogen bonding affect acidic strength?

Comments (9)

Tarun Garg

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6 Jun 2012 11:50:23 IST

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2.more the strong Hydrogen bond more the acidic strength

Benita

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6 Jun 2012 11:53:55 IST

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So between ortho nitro phenol and para nitro phenol, which wud be stronger acid?

Tarun Garg

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6 Jun 2012 11:57:16 IST

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and yeah it is wrong that I- IS MORE STABLE THAN F-

Tarun Garg

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6 Jun 2012 12:00:32 IST

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para is more due to intramolecular h.b. Is stronger than inter

Tarun Garg

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6 Jun 2012 12:02:12 IST

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also it is due to stearic factor

Benita

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6 Jun 2012 12:18:26 IST

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Hey, could it be dat since I^-has greater size dan F^- , charge dispersion is more so I^- becomes more stable?

Tarun Garg

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6 Jun 2012 12:43:58 IST

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where have u seen that I- is more stable than F-

Janardhan K

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6 Jun 2012 17:27:21 IST

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yes, it is true that I- is stable then F- and reason is the large size of iodine.....large size, same charge,less charge density, less reactive, more stable....and also I- has high polarising power than F- again the reason is dispersion of electron cloud....thats why I- is more nucleophilic then F-

Janardhan K

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6 Jun 2012 17:28:54 IST

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and so stability defines leaving group tendency and we have For halogens, I > Br > Cl >> F

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