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#Post#: 2248--------------------------------------------------
Daily question-102
DIR By: Shiva
Date: March 5, 2013, 11:51 am
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Which of the following has the highest percentage of ionic
character?
(a) HI
(b) HBr
(c) HCl
(d) HF
#Post#: 2250--------------------------------------------------
Re: Daily question-102
DIR By: Sobia Sarwar
Date: March 6, 2013, 6:12 am
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(d)HF
#Post#: 2251--------------------------------------------------
Re: Daily question-102
DIR By: Shiva
Date: March 6, 2013, 11:49 am
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Yep and one of the dangerous compounds to work with. Have you
ever worked with HF Sobia?
Shiva
#Post#: 2253--------------------------------------------------
Re: Daily question-102
DIR By: Sobia Sarwar
Date: March 7, 2013, 6:48 am
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not yet may b in next semester we use it......however i read it
as a solvent :)
#Post#: 2254--------------------------------------------------
Re: Daily question-102
DIR By: Shiva
Date: March 7, 2013, 7:26 am
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woooo! Yes, it is a good solvent of your tissue haha. Well, it
is not strong among the acids and its strength is somewhere
between Citric and formic acid. But, it is extremely corrosive
and poisonous. You better avoid it. For this reason, even
chemists afraid to work with it. So, its obvious corrosive
property of acids does not do anything with its strength. Even
the vapor of the acid will cause severe injuries on exposure.
So, you must have fume hood for handing HF. Also, we all know HF
does eat glass, so you should have a special vessel for
reactions involving HF. As HF is extremely stable, it is
virtually impossible to prepare Fluorine from HF even by using
strong oxidising agents and it makes Fluorine preparation more
difficult. Considering the above, HF must be handled with utmost
care or better avoid it.
Shiva
#Post#: 2258--------------------------------------------------
Re: Daily question-102
DIR By: Sobia Sarwar
Date: March 8, 2013, 6:32 am
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yah i know...if we work with it then surely the proper
arrangements of its handeling will be done
#Post#: 2264--------------------------------------------------
Re: Daily question-102
DIR By: Shiva
Date: March 8, 2013, 12:22 pm
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good then:)
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