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Author Topic: AS Chemistry Doubt Organic  (Read 1029 times)

Offline $!$RatJumper$!$

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AS Chemistry Doubt Organic
« on: October 26, 2010, 02:56:39 pm »
I have a confusion. I have learnt in school, from my textbooks and online that the conditions for going from a haloalkane to an alcohol are heat under reflux with Aq NaOH. Though, in almost every chem paper when they ask to mention these conditions, the answer is Heat with Aq NaOH.
I don't get why it isn't heat under reflux as that is what i have read everywhere.
Someone please clarify this.
Thankx
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Offline SpongeBob

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Re: AS Chemistry Doubt Organic
« Reply #1 on: October 26, 2010, 03:11:25 pm »
From what I have learnt, it is indeed under reflux.

Could you upload the paper?
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Offline Deadly_king

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Re: AS Chemistry Doubt Organic
« Reply #2 on: October 26, 2010, 03:12:35 pm »
Quote from: $!$RatJumper$!$ on October 26, 2010, 02:56:39 pm
I have a confusion. I have learnt in school, from my textbooks and online that the conditions for going from a haloalkane to an alcohol are heat under reflux with Aq NaOH. Though, in almost every chem paper when they ask to mention these conditions, the answer is Heat with Aq NaOH.
I don't get why it isn't heat under reflux as that is what i have read everywhere.
Someone please clarify this.
Thankx

Yeah it is.

But usually it does not really matter if you say just heat. It's understood that it is heat under reflux ;)
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Offline SpongeBob

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Re: AS Chemistry Doubt Organic
« Reply #3 on: October 26, 2010, 03:21:26 pm »
 Usually when it comes to converting alcohol to aldehyde, they do specify if it is heat under reflux. So I wonder why not here?  :-\ It's not the same thing you know-heat and heat under reflux.  :-\
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Offline $!$RatJumper$!$

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Re: AS Chemistry Doubt Organic
« Reply #4 on: October 26, 2010, 03:49:38 pm »
yeah i dont think its the same thing :/
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Offline Deadly_king

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Re: AS Chemistry Doubt Organic
« Reply #5 on: October 26, 2010, 03:56:04 pm »
Quote from: SpongeBob on October 26, 2010, 03:21:26 pm
Usually when it comes to converting alcohol to aldehyde, they do specify if it is heat under reflux. So I wonder why not here?  :-\ It's not the same thing you know-heat and heat under reflux.  :-\

Of course it's not the same thing!

But the examiner sometimes consider them to be the same thing. I said 'sometimes' since it is not always the case.

I would advice to specify heat under reflux ;)
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