Edexcel Chemistry Unit 1 IAL (WCH01) Core principles of chemistry - 23rd May 2014

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Vetstudent2014
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Hey guys.. It looks as though no one has made a thread for this exam yet soo here it is! Unit 1 chemistry IAS

Everyone share your ideas and thoughts!



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TSR Learn Together
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Hi there,

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Fattyma97
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Why are the multiple choice so tricky, you think an answer is right and then it's not. Any tips on section A

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Vetstudent2014
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Yes, Section A can be quite tricky because the mutliple choice questions often give very similar options.. The only tips I could probably give would be to read the questions carefully, use your blank pages or the spaces given for rough working out, try not to spend too much tie on each question (If you're unsure of an answer, move on to the next one and come back afterwards as there isn't much time), one way to approach a tricky question would be to try and dismiss options that you think are definetely wrong.. This will narrow it down.

There is not much else to say really.. other than practice practice and practice past papers! This will improve your time management in past papers and also exam technique for this type of question.

Good luck!.. Come on guys, lets discuss
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koko1234
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Do you guys have any idea what might come up in the exam? I remember last year most of the expected questions did come up.
Also, hows revision going and what are you having difficulty on?
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Vetstudent2014
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(Original post by koko1234)
Do you guys have any idea what might come up in the exam? I remember last year most of the expected questions did come up.
Also, hows revision going and what are you having difficulty on?
I am just a little confused about the reaction of alkenes with the halogen fluorine. My book states that they react explosively to give two molecules of tetrafluoromethane (CF4) but many internet pages state that the reaction gives C + HF .. Which is correct?

Is this reaction even that important to remember? The book seems to emphasise more the reactions with Cl2 and Br2​.

Thanks
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fictioned
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I am nervous about Chem.
Unit 3 was eh for me

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SaadKhan02
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Any guesses guys what would be coming this summer?
I guess most of it would be from Moles,Energetics and Organic Chemistry!:cool:
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Fattyma97
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I am so confused about the free radical substitution reactions. Anyone explain it pleasee

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fictioned
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Do you want the mechanism too? ^^

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Fattyma97
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Yes please

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fictioned
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Here is the mechanism.
Free radical substitution reaction is used in alkanes under UV rays and heat under reflux

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hadukilami
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Am I the only one who finds unit 1 so hard? I got an E in my mock for unit 1 but for unit 2 and 3 i got an A..
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Fattyma97
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Thankss!! Can u please also explain geometric isomers pleaseeeee. There's a multiple choice I don't understand.. June 13 not R and question 14

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Fattyma97
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And how to name organic Compounds

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nimnim9
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(Original post by Fattyma97)
Thankss!! Can u please also explain geometric isomers pleaseeeee. There's a multiple choice I don't understand.. June 13 not R and question 14

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For geometric isomers to occur two conditions must be satisfied, they are:
presence of c-c double bond with limited rotation and two different atoms or groups of atoms attached to each carbon atom holding c-c double bond.
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nimnim9
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can somebody explain how to find the answer for Q9 (MCQ) of 2014 jan IAL paper?
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Sharkindustries
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How do you determine that a compound is polar or not?
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Navo D.
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(Original post by Sharkindustries)
How do you determine that a compound is polar or not?
Not required for unit 1, but you have to consider the electronegativity of the elements in the compound, there are some standard rules/examples of polar compounds. Why do you ask?
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Ripper Phoenix
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how ready are you guys on a scale of 1 to 10? (10 means "bring the paper on now!")
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