Organic Chemistry - distinguish

1

skygirl ·2009-01-16 19:24:18

ok wait for 5 mins.

posting something.. then forgiving [3]

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1

palani ............... ·2009-01-13 07:15:14

@ skygirl
how haloform?

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1

skygirl ·2009-01-13 07:20:17

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1

skygirl ·2009-01-13 07:27:54

am i wrong ?

if no, then = fine.

if yes, then = explain why...

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33

Abhishek Priyam ·2009-01-13 07:32:25

We can find its mol wt by any colligative property :P

and can distinguish... :D

today only studied liq soln :p

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1

skygirl ·2009-01-13 08:03:31

pls rep... ne1...

those who were against haloform....

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3

msp ·2009-01-13 08:30:04

hey wat is ne1

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33

Abhishek Priyam ·2009-01-13 08:31:45

any one

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1

skygirl ·2009-01-13 08:33:11

[3]

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62

Lokesh Verma ·2009-01-13 08:35:39

"Anyone"

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1

skygirl ·2009-01-16 19:10:14

no pink ??

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11

Anirudh Narayanan ·2009-01-16 19:14:48

Sky, ur answer seems to b correct. But I'm a jumbo dumbo at organic chemistry. So pls forgive me [3]

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1

gagar.iitk ·2009-01-13 06:36:35

can u explain what u want to say skygirl

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11

Anirudh Narayanan ·2009-01-16 19:27:05

okie [3]

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1

skygirl ·2009-01-16 19:41:58

ok so u are forgiven [3]

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1

voldy ·2009-01-16 20:00:55

well , haloform is fine . preferbaly iodoform :) .

adn other method is first oxidise using PCC and use a base , as they are only to be distinguished this is possible and not separated.
and by knowing the percentage of enol present we can identify them

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1

skygirl ·2009-01-16 20:03:41

hmm...

u always have a diff method :)

u are great in chem !!

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1

rahul wadhwani ·2009-01-22 02:54:06

hey everyone have given the answer but i think no one got confused as u all take 1-propanol but none has taken 2-propanol if it is 2-propanol & ethanol then haloform test fails then oxidation with dil.KMnO₄ is via to distinguish them & if1-propanol then same above test but hey think any more way to distinguish via long conversion think plzzzz

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1

voldy ·2009-01-22 03:12:01

aldol and enol content . should suffice for this also .
else oxidise using PCC . and then tollen's test . this should be sufficient.

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24

eureka123 ·2009-01-22 03:12:43

Extract from Schaums book
""Add I₂ in OH^- until I₂ colour persists.A pale yellow ppt. of CHI₃ appears indicating that ethyl alcohol is oxidised.
Propyl alcohol does not have -CH(OH)CH₃ group and is not oxidised ""