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abhas
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Anu..i luv icse...:)
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G-7
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ambili
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ambili


plsss...answer this Vide
PostSubject: plsss...answer this plsss...answer this EmptyTue Feb 24, 2009 10:27 pm

do u know wat these terms r?????????plsssss..help

1.Fehling's solution
2.Tollen's solution
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Anu..i luv icse...:)
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Anu..i luv icse...:)


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyWed Feb 25, 2009 2:09 am

1) ammoniacal cuprous chloride

2) ammoniacal silver nitrate....(i think nitrate only)

these two are used in detecting the triple bond-ethyne 1) gives red ppt and 2) gives white ppt....
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ambili
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ambili


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyThu Feb 26, 2009 6:49 pm

thanxxxxxxxx......
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kanika rajput
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kanika rajput


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyThu Feb 26, 2009 6:51 pm

i never heard of dem???????
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Apurva
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Apurva


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 3:29 am

its in organic chemistry
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Arya Nair
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Arya Nair


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 11:28 am

they are very important
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ambili
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ambili


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 1:44 pm

in concise it's given in a table...2 distingiush between alkanes,alkenes n alkynes.....but these terms(fehlings sol&tollen's sol) r not given........it is very very very imp....
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deboshree
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plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 4:46 pm

hey ambilli, its given in concise at the back , in the definitions. learn all of them. they'll help
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kanika rajput
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kanika rajput


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 5:09 pm

wat is d effect of dese on alkanes nd alkynes
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siya
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siya


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 5:32 pm

hey can we b asked d chemical names of dese solns like fehling's soln..etc..n btw wat is tollen's soln..neva heard it...anu which chemistry buk u use??
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Aanchal
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plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 6:58 pm

u mai find theze in various question paperzz.........
n ya ...speciali d specimen paper !
reeelaii imp coz mani get confused abt theze compoundz .......
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kanika rajput
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kanika rajput


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 7:42 pm

telll wat r der ediffeffects??????
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Anu..i luv icse...:)
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Anu..i luv icse...:)


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 10:17 pm

i told na kanika that they form red n white ppts wen reacting with ethyne,..they dnt react wth ethene n ethane
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vallabh
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vallabh


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptyFri Feb 27, 2009 10:24 pm

If there are any chapters i hate then they are (acids, bases & salts) & Organic chemistry!!
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ambili
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ambili


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySat Feb 28, 2009 12:01 am

hey...organic chemistry is really interesting
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siya
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siya


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySat Feb 28, 2009 12:03 am

yup organic chemistry is gud....btw nobody told me wat is tollen's soln?matlab wat is it used for?
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Anu..i luv icse...:)
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Anu..i luv icse...:)


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySat Feb 28, 2009 12:23 am

arrey siya...i told u na...in the first comment itself..read it
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nikhita
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nikhita


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySat Feb 28, 2009 1:03 am

anu r there any other solutions of this kind????????if yes then plz post the names and uses of a few .....i dont hav them in my book........
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Anu..i luv icse...:)
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Anu..i luv icse...:)


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySat Feb 28, 2009 5:38 pm

i know only these two...i came across them in some guide. even my text does not mention them
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nikhita
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nikhita


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySat Feb 28, 2009 7:49 pm

oh okay...may b these may not be that important...... No
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Teju
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Teju


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySun Mar 15, 2009 12:02 am

hey its interesting , if not also we should study its very important
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abhi_1993
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plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySun Mar 15, 2009 12:52 am

though u may not know me i thought i shud tell u...i think u people may know this but ther is another reagent...Baeyer's reagent...it is cold dil. alkaline KMnO4(potassium permanganate) soln...it oxidises ethene to ethylene glycol(ie. CH2OH-CH2OH) n also oxidises ethyne to oxalic acid(COOH-COOH)...n has no effect on alkanes...
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Teju
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Teju


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySun Mar 15, 2009 1:30 am

hi! abhi i knew it but tnx 4 remembering it again
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Midhun Sarath
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Midhun Sarath


plsss...answer this Vide
PostSubject: Re: plsss...answer this plsss...answer this EmptySun Mar 15, 2009 3:18 pm

ty abhi.. i didn't have my last revison on tht bayers reagent... Exclamation
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nikhita
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nikhita


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PostSubject: Re: plsss...answer this plsss...answer this EmptySun Mar 15, 2009 10:35 pm

thanx abhi...... Razz
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