WTF CHEMISTRY PAPER 42 IS SO HARD

[Aly Emran]

True that
P5 chem ka sab se mushkil hota hai.
Anyways got p4 bio tomorrow. I should better not make blunders in that aaj ki tarah ._.

Hahah yea best of luck... I hope i dont make blunders in my maths m1

 

[anonymous1122]

Hahah yea best of luck... I hope i dont make blunders in my maths m1

Best of luck. Hope they dont come up with a three pulley system this time after introducing two in last year paper

 

[Noshhcx]

Alright so now that all you can calm down, it's been 24 hours since the paper first started so #gg let the discussion begin.
Question 6 was actually really easy if you think about it. The only issue was that when most of started to read it you get that sense it will be tough and you build fear for the question and then you find it tough. Yeah it was tough it was extremely different but it was basically '8 number muft ke'
all you had to do was tell them if it was 'amide, amine, phenol, or ester/acid' depending on the solubilities.
E was insoluble in both, so amide + ester.
F was soluble in both so amine + phenol
G was soluble in HCl and in soluble in NaOH so amine + acid / ester
H was insoluble in HCl and soluble in NaOH so amide + phenol.
//took this info from the girl with 8A*s in O Levels and 4As in AS and to be 4A*s in A2. kk

 

[Kamihus]

Alright so now that all you can calm down, it's been 24 hours since the paper first started so #gg let the discussion begin.
Question 6 was actually really easy if you think about it. The only issue was that when most of started to read it you get that sense it will be tough and you build fear for the question and then you find it tough. Yeah it was tough it was extremely different but it was basically '8 number muft ke'
all you had to do was tell them if it was 'amide, amine, phenol, or ester/acid' depending on the solubilities.
E was insoluble in both, so amide + ester.
F was soluble in both so amine + phenol
G was soluble in HCl and in soluble in NaOH so amine + acid / ester
H was insoluble in HCl and soluble in NaOH so amide + phenol.
//took this info from the girl with 8A*s in O Levels and 4As in AS and to be 4A*s in A2. kk

It would have been '8 number muft ke' if they gave us which functional group was present in which structure. Deciding which of these were present was the real part.

 

[Noshhcx]

It would have been '8 number muft ke' if they gave us which functional group was present in which structure. Deciding which of these were present was the real part.

That kind of would have been to easy. If they gave you the functional groups they'd probably ask you their solubiltiies which would still be kind of tricky, or they would ask something else for 4 marks (in replacement of the functional group guessing table) with something easier - but the chance of that wouldn't be that high.
eh whatever, it's the past. our AS exam had 2 hard questions and the GT dropped to the midhigh 30s. The GT will probably be high 50's or low 60's.

 

[Bilal Khan]

True that
P5 chem ka sab se mushkil hota hai.
Anyways got p4 bio tomorrow. I should better not make blunders in that aaj ki tarah ._.

P5 nai p4 mushkil hota hai .

 

[Bilal Khan]

Alright so now that all you can calm down, it's been 24 hours since the paper first started so #gg let the discussion begin.
Question 6 was actually really easy if you think about it. The only issue was that when most of started to read it you get that sense it will be tough and you build fear for the question and then you find it tough. Yeah it was tough it was extremely different but it was basically '8 number muft ke'
all you had to do was tell them if it was 'amide, amine, phenol, or ester/acid' depending on the solubilities.
E was insoluble in both, so amide + ester.
F was soluble in both so amine + phenol
G was soluble in HCl and in soluble in NaOH so amine + acid / ester
H was insoluble in HCl and soluble in NaOH so amide + phenol.
//took this info from the girl with 8A*s in O Levels and 4As in AS and to be 4A*s in A2. kk

AMide is soluble in cold HCl , my friend.

 

[Aly Emran]

Best of luck. Hope they dont come up with a three pulley system this time after introducing two in last year paper

X____X three pulley system?! I cant handle 2 system pulley properly :S

 

[Noshhcx]

Meh whatever, who cares now. xD focus for the upcoming slaughterhouse next week.
4 days, 5 papers. </3

AMide is soluble in cold HCl , my friend.

 

[khan-12]

OMG PAPER 42 IS SO HARD.

it was difficult ................ do u remember the name of element with proton number electron number and neutron number given

 

[Princess Raven]

it was difficult ................ do u remember the name of element with proton number electron number and neutron number given

Yeah it's was 33p-

 

[Noshhcx]

Yeah it's was 33p-

That was so easy yet I got that wrong too LIKE FML. ._____.

 

[Omar Haider]

The answers you've given cannot be correct because they don't comply with the molecular formula given, C8H9NO2. Your structure E contains 3 O's and F contains only 1. The information given for structures G and H seems accurate, I put the same. However for E it should be alcohol and amide and for F is should be carboxylic acid and amine.

Alright so now that all you can calm down, it's been 24 hours since the paper first started so #gg let the discussion begin.
Question 6 was actually really easy if you think about it. The only issue was that when most of started to read it you get that sense it will be tough and you build fear for the question and then you find it tough. Yeah it was tough it was extremely different but it was basically '8 number muft ke'
all you had to do was tell them if it was 'amide, amine, phenol, or ester/acid' depending on the solubilities.
E was insoluble in both, so amide + ester.
F was soluble in both so amine + phenol
G was soluble in HCl and in soluble in NaOH so amine + acid / ester
H was insoluble in HCl and soluble in NaOH so amide + phenol.
//took this info from the girl with 8A*s in O Levels and 4As in AS and to be 4A*s in A2. kk

 

[Princess Raven]

The answers you've given cannot be correct because they don't comply with the molecular formula given, C8H9NO2. Your structure E contains 3 O's and F contains only 1. The information given for structures G and H seems accurate, I put the same. However for E it should be alcohol and amide and for F is should be carboxylic acid and amine.

yea exactly what he said

 

[Princess Raven]

What did u guys get for the monomer! And how Many isomers were there 2 or 4

 

[Noshhcx]

The answers you've given cannot be correct because they don't comply with the molecular formula given, C8H9NO2. Your structure E contains 3 O's and F contains only 1. The information given for structures G and H seems accurate, I put the same. However for E it should be alcohol and amide and for F is should be carboxylic acid and amine.

Haha, yes I guess I am wrong.
I wrote the structures of the amide wrong. bleh who cares.

What did u guys get for the monomer! And how Many isomers were there 2 or 4

I believe there are 4 but I don't even remember the question...

 

[Debonny1]

What did u guys get for the monomer! And how Many isomers were there 2 or 4

I got 3 chiral carbons

 

[happyperson]

I got 3 chiral carbons

There were only two chiral carbon atoms and four isomers.

 

[Yemal Malaka Bandara]

There were only two chiral carbon atoms and four isomers.

Corerct, there were two chiral with four isomers...

 

[ForeverAndBeyond]

Expo centre!.. Mine centre also this

Woah. That was one precise guess o.o