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10 Nov 2008 17:55:44 IST
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WHY HOCL IS MORE ACIDIC THAN HCLO4
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WHY HOCL IS MORE ACIDIC THAN HCLO4


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Hot goIITian

Joined: 29 Sep 2008
Posts: 165
13 Nov 2008 12:17:49 IST
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dear u r wrong.HClO4 is more acidic than HClO due to its more stable conjugate base because of resonance,.
rate if useful.

Blazing goIITian

Joined: 28 Apr 2008
Posts: 781
13 Nov 2008 12:21:44 IST
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larger the no of terminal oxygen (those bound to 1 Cl atom)the stronger is the corresponding acid....or acid strength inc as the no of extra O2 inc...Eg-HClO4>HClO3>HClO2>HOCl...hope it helps!!!~ 

vignesh  the cooler version of newton's Avatar

Blazing goIITian

Joined: 16 Mar 2008
Posts: 1801
13 Nov 2008 12:30:47 IST
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yeah..
HOClO3 is stronger acid than HOCl..
for any acid, its acidic strength depends on the stability of conjugate base..
in HOClO3, when it loses its H+ ion , it makes CLO4 - which has 4 equivalent resonating structures...thus making it more stable...


Cool goIITian

Joined: 23 Oct 2008
Posts: 64
13 Nov 2008 20:00:50 IST
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WEL HOCL4 IS A STRONGER ACID THAN HOCL................WEL THE CONJUGATE BASE OF HOCL4 IS MADE STABLE DUE TO RESONANCE..................
Krishna Gopal Singh's Avatar

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Joined: 29 Dec 2006
Posts: 5153
14 Nov 2008 09:51:22 IST
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Right friends HClO4 is more acidic than HClO
varsha valli g.'s Avatar

Blazing goIITian

Joined: 31 Jan 2007
Posts: 515
17 Nov 2008 19:24:42 IST
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ya more the no. of Cl-O bonds more is the acidity.
!!!!!!!!!!!!!!!!!!!!

Hot goIITian

Joined: 2 May 2008
Posts: 185
18 Nov 2008 20:24:43 IST
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the correct order follows:-


HCLO4>HCLO3>HCLO2>HOCL


the greater the no. of oxygen atoms the greater 'll b the dispersal of negative charge...


hence the more 'll be the acidity.......

coolkhan's Avatar

Cool goIITian

Joined: 1 Oct 2008
Posts: 79
18 Nov 2008 20:27:16 IST
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greater d oxidation state of halide greater is its acid strength

so hclo4>hclo
Madmax's Avatar

Blazing goIITian

Joined: 24 Dec 2007
Posts: 1111
5 Jan 2009 19:25:01 IST
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I nearly fainted when I read this question

mere concepts ki toh dhajji udaa di is question ne

Thank god, everyone answered as per my concepts

my explanation is simple

higher the covalency of central atom, more is its acidity

AND

higher the oxidation state of the central atom, more is its covalency

using these concepts U can clearly see that acidity of HClO4 >HOCll
Sunny Shah's Avatar

Hot goIITian

Joined: 8 Nov 2007
Posts: 166
5 Jan 2009 19:37:06 IST
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We could even explain it like this...conjugate base of HClO4 is ClO4- while that of HOCl is ClO- .


Now, greater no. of O atoms means greater dispersal of negative charge by p-d back bonding..thus base will be more stable explaining greater acidity of HClO4..

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Blazing goIITian

Joined: 21 Nov 2008
Posts: 1020
5 Jan 2009 19:49:05 IST
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HClO4 is a stronger acid than HOCl
u can compare the conjugate bases of each. u will find that ClO4- ion is more stable due to resonance. hence this ion is formed more easily i.e it leaves H+ more easily than HOCl. so its more acidic



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