Chemistry: Post your doubts here!

[♣♠ Magnanimous ♣♠]

no

what? what do you wanna say asma?
what i said was totally right

 

[Kamihus]

http://papers.xtremepapers.com/CIE/...d AS Level/Chemistry (9701)/9701_w03_qp_1.pdf
Q40. Statement 2?
Suchal Riaz

 

[♣♠ Magnanimous ♣♠]

There is something i wanted to tell you which might be coming tomorrow.
When bromine(aq) react with ethene we get a bromoethanol
i mean if bromine is aqueous then OH and Br will be added to the double bond. By posting doubt i wanted to see how many of you already knew this. this question was in a paper from which many 2013 papers were repeated. it an old paper not found on Xtremepapers

Thanks for sharing it with us

 

[ZaqZainab]

is this a chiral --> View attachment 45208
bro chiral centre means four DIFFERENT groups attached to it! but here i can see that CH2 is repeating so it is not a chiral

nope its not if you move upwards the ring you have same you move downwards you get same in the same sequence

 

[♣♠ Magnanimous ♣♠]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w03_qp_1.pdf
Q40. Statement 2?
Suchal Riaz

bro i think jo mai bola tha wahi right he.. to bhi suchal kya kahega dekhte he

 

[kitkat <3 :P]

what? what do you wanna say asma?
what i said was totally right

i meant its not chiral :'/ isnt it so :'/?

 

[Suchal Riaz]

many people have confusion regarding it. i understood it from past papers. it is not in any book or website.

 

[Rockstar RK]

Thnx for sharing
can u share the link for this paper
to wat time r u available today??

Bro, anjane me maine tumhe bhala-bura suna diya.... Reason is: muje laga ki tum mere junior classmate ho! Again I am sorry for that...

 

[♣♠ Magnanimous ♣♠]

nope its not if you move upwards the ring you have same you move downwards you get same in the same sequence

i didn't get you? do explain in diagram please

 

[♣♠ Magnanimous ♣♠]

i meant its not chiral :'/ isnt it so :'/?

yeah! it's not a chiral.. you are right

 

[GCE As and a level]

Bro, anjane me maine tumhe bhala-bura suna diya.... Reason is: muje laga ki tum mere junior classmate ho! Again I am sorry for that...

Bro
English plz

 

[Rockstar RK]

Best of luck all of u members who are online now...I will pray god for all of us for A grade in Chemistry!!!

 

[♣♠ Magnanimous ♣♠]

many people have confusion regarding it. i understood it from past papers. it is not in any book or website.View attachment 45209

View attachment 45210

muje zyada samaj nahi aya... samjao phir se please

 

[Kamihus]

There is something i wanted to tell you which might be coming tomorrow.
When bromine(aq) react with ethene we get a bromoethanol
i mean if bromine is aqueous then OH and Br will be added to the double bond. By posting doubt i wanted to see how many of you already knew this. this question was in a paper from which many 2013 papers were repeated. it an old paper not found on Xtremepapers

Also amide hydrolysis and acyl chlorides are added in the syllabus this year so revise them as they are not in the past papers.

 

[Suchal Riaz]

a more neat diagram

 

[♣♠ Magnanimous ♣♠]

Bro
English plz

he told by mistaken he told you many wrong things and now he is sorry for that ... haine rockstar atte kevanu hatu ne

 

[ZaqZainab]

i didn't get you? do explain in diagram please

here you go through Green arrow same sequence you go through black one same sequence

 

[♣♠ Magnanimous ♣♠]

a more eat diagram

got it

 

[Suchal Riaz]

Also amide hydrolysis and acyl chlorides are added in the syllabus this year so revise them as they are not in the past papers.

yes i agree. they are not in the book. here is an excellent resource:
http://www.chemguideforcie.co.uk/section107/learningf.html#top
http://www.chemguideforcie.co.uk/section107/learningh.html#top

 

[Rockstar RK]

Bro
English plz

Unknowingly i made a mistake and said u: u r bad and... etc. Reason is: I thought that u are my junior classmate and messed up completely.... I am sry again!!!