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    (Original post by Sunethra)
    Did u tick 150cm3 too? I am new to edexcel too, I did IB and Cambridge before, eventhough I nevr did a legit exam with IB! oh that! what did u write for that? I said bromine form dipole ions with slightly positive and slightly negative. Then I explained that an electrophile is a positive therefore it can easily attack the alkene.
    No i ticked 75 haha, but in the mcq i think i made lther silly mistakes ...Yeah thats like exactly what i said 👯🎉exept i think i went into way too much deatil about how the dipole is cause ie by bromine approaching electron rich pi ect but i think what u said is what they want! IB is sooooo much HARDER! Yeah i did cie too haha the problem is that edexcel are very specific if u look at there mark schemes.. So we will see haha
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    guys in the MCQ's question
    1. about the total volume of gasses i said total volume 150 cm2. In the question about reagents and conditions just before before the last page i said acidified potassium permangnate +7 and colour change purple to colourless 3. in the question about the shale gas i said amount of ployshit will increase because amount of these will increase they can be seperated by fractional distillation according to their boiling point and liquified then polymerized4.in the question about extent of covelancy I said Aluminum has higher charge and smaller ionic radius so high charge density it polarises the chloride ion more so extent of covelancy so lattice energy more exothermic and higher melting point
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    (Original post by Willandy123)
    D, rest were cracking
    i wrote it D because cracking is the process in which staright chain alkane are converted into ringed or branched Most suitable was D because it Branched
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    (Original post by Mimiastc)
    No i ticked 75 haha, but in the mcq i think i made lther silly mistakes ...Yeah thats like exactly what i said 👯🎉exept i think i went into way too much deatil about how the dipole is cause ie by bromine approaching electron rich pi ect but i think what u said is what they want! IB is sooooo much HARDER! Yeah i did cie too haha the problem is that edexcel are very specific if u look at there mark schemes.. So we will see haha
    in the question about bromine in the last page i said that carbon to carbon double bond and this acts as nucleophile therefore this attacks the br2 making one end slightly positive and other end slightly negative therefore this attacks c+ propene is this enough to get 2 marks?
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    (Original post by Mimiastc)
    No i ticked 75 haha, but in the mcq i think i made lther silly mistakes ...Yeah thats like exactly what i said 👯🎉exept i think i went into way too much deatil about how the dipole is cause ie by bromine approaching electron rich pi ect but i think what u said is what they want! IB is sooooo much HARDER! Yeah i did cie too haha the problem is that edexcel are very specific if u look at there mark schemes.. So we will see haha
    guys in the MCQ's question
    1. about the total volume of gasses i said total volume 150 cm2. In the question about reagents and conditions just before before the last page i said acidified potassium permangnate +7 and colour change purple to colourless 3. in the question about the shale gas i said amount of ployshit will increase because amount of these will increase they can be seperated by fractional distillation according to their boiling point and liquified then polymerized4.in the question about extent of covelancy I said Aluminum has higher charge and smaller ionic radius so high charge density it polarises the chloride ion more so extent of covelancy so lattice energy more exothermic and higher melting point
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    (Original post by a.adi1998)
    in the question about bromine in the last page i said that carbon to carbon double bond and this acts as nucleophile therefore this attacks the br2 making one end slightly positive and other end slightly negative therefore this attacks c+ propene is this enough to get 2 marks?
    I think you will get a mark for mentioning the fact that the c=c creates a dipole in the br2 but the c=c bond is not a nucleophile so not sure about that ( the one br (delta positive) acts as an electrophile where as the other br( delta negative) acts as the nucleophile ) ...fingers crossed 😊👌🏼
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    (Original post by a.adi1998)
    guys in the MCQ's question
    1. about the total volume of gasses i said total volume 150 cm2. In the question about reagents and conditions just before before the last page i said acidified potassium permangnate +7 and colour change purple to colourless 3. in the question about the shale gas i said amount of ployshit will increase because amount of these will increase they can be seperated by fractional distillation according to their boiling point and liquified then polymerized4.in the question about extent of covelancy I said Aluminum has higher charge and smaller ionic radius so high charge density it polarises the chloride ion more so extent of covelancy so lattice energy more exothermic and higher melting point
    - it think the gas one was 75
    - pottasium one is correct
    - not sure about shale but i aslo said it increased ...
    -the aliminium is correct but i think imhad to mention physical eveidence ie density maps( i mentioned relationship between experimental and real lattice energies ) not sure u had to mention melting point but no marks will be lost for that haha

    But seems good 👌🏻🎉
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    (Original post by Mimiastc)
    I think you will get a mark for mentioning the fact that the c=c creates a dipole in the br2 but the c=c bond is not a nucleophile so not sure about that ( the one br (delta positive) acts as an electrophile where as the other br( delta negative) acts as the nucleophile ) ...fingers crossed 😊👌🏼
    so two marks?
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    (Original post by a.adi1998)
    so two marks?
    Definately 1 and possibly 2 , i am not an examiner so idk😂 it could be argued that the c=c does kinda act as a nuclephile in theory ( of definition ) because of the fact that it seeks out positive charge however its not an ordinary apporoch because the the br was being discussed .. So maybe a second opinion is required 😂😂
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    (Original post by Mimiastc)
    - it think the gas one was 75
    - pottasium one is correct
    - not sure about shale but i aslo said it increased ...
    -the aliminium is correct but i think imhad to mention physical eveidence ie density maps( i mentioned relationship between experimental and real lattice energies ) not sure u had to mention melting point but no marks will be lost for that haha

    But seems good 👌🏻🎉
    bro i said that experimental and lattice

    in the hess cycle i wrote the answer directly without working out or no i wrote it in and get it in positve value then i remebered its negative value then combustion value then its negative then i just crossed everything and wrote -593

    in the next part about energy i got the no.of moles which is mass/mr then i divide it 593 by this value
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    (Original post by Mimiastc)
    Definately 1 and possibly 2 , i am not an examiner so idk😂 it could be argued that the c=c does kinda act as a nuclephile in theory ( of definition ) because of the fact that it seeks out positive charge however its not an ordinary apporoch because the the br was being discussed .. So maybe a second opinion is required 😂😂
    bro btw these people are *****es this is a unit 2 question and i remeber that lone pairs acts as a nucleophile as well as double bond
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    Ooo
    (Original post by ToxicPhantom007)
    lol wo main is ki baat kr rha tha xD shoka hone wali
    Looooool xD
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    (Original post by Mimiastc)
    No i ticked 75 haha, but in the mcq i think i made lther silly mistakes ...Yeah thats like exactly what i said 👯🎉exept i think i went into way too much deatil about how the dipole is cause ie by bromine approaching electron rich pi ect but i think what u said is what they want! IB is sooooo much HARDER! Yeah i did cie too haha the problem is that edexcel are very specific if u look at there mark schemes.. So we will see haha
    i ticked 150 cm and iam pretty sure about it
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    (Original post by a.adi1998)
    bro i said that experimental and lattice

    in the hess cycle i wrote the answer directly without working out or no i wrote it in and get it in positve value then i remebered its negative value then combustion value then its negative then i just crossed everything and wrote -593

    in the next part about energy i got the no.of moles which is mass/mr then i divide it 593 by this value
    I got a different answer too you so idk😂 definatly negative so a mark for that ( possibly a marks for answer , i could be wrong with mine ) and ur last one not sure about cant rememer method ..
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    (Original post by Sunethra)
    What are you referring to? mcq? or about the definition for isotopes?
    the first question that spectrometerery one
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    (Original post by Mimiastc)
    I got a different answer too you so idk😂 definatly negative so a mark for that ( possibly a marks for answer , i could be wrong with mine ) and ur last one not sure about cant rememer method ..
    i hope this examiner is blind and he will give me all 3 marks lool
    btw the product of bromine water is 2 bromopropanol
    i think iam getting around 70 like 69
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    (Original post by Mimiastc)
    No i ticked 75 haha, but in the mcq i think i made lther silly mistakes ...Yeah thats like exactly what i said 👯🎉exept i think i went into way too much deatil about how the dipole is cause ie by bromine approaching electron rich pi ect but i think what u said is what they want! IB is sooooo much HARDER! Yeah i did cie too haha the problem is that edexcel are very specific if u look at there mark schemes.. So we will see haha
    u were supposed to refer repulsion from doble bond which causes to break bromine hetrotically etc
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    (Original post by MrBioBombastic)
    u were supposed to refer repulsion from doble bond which causes to break bromine hetrotically etc
    I said that too.... Lets just say i wrote way too much fir this question 😂
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    (Original post by Mimiastc)
    I got a different answer too you so idk😂 definatly negative so a mark for that ( possibly a marks for answer , i could be wrong with mine ) and ur last one not sure about cant rememer method ..
    Did you get -2868.5 kJ/mol ?
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    (Original post by a.adi1998)
    i ticked 150 cm and iam pretty sure about it
    150 is totally wrong see cl was in excess it had 50cm^3 and h2 had 25 cm^3 so ratio was 1:1 and 25 cm^3 cl reacted product was 50 cm^3 and cl2 unreacted was 25 cm^3 so 50+25=75
    haha lol
 
 
 
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