Chemistry: Post your doubts here!

[Error Syntax]

wait there were 3 double bonds
so werent v supposed to have 8 isomers?

 

[Error Syntax]

here is the compound guys the optical isomers are 6

 

[ThePacifics]

Yeah I did p41 today.. don’t ask for answers cuz I’m not sure if mine ..

okay how did your batch find the difficulty level tho

 

[anastasia grey113]

okay how did your batch find the difficulty level tho

lol idk wut makes ppl say this was an easy paper cuz it wasnt THAT easy
the threshold should be 60 i guess
not higher than that

 

[Zaki ali asghar]

yeah, not that easy but easier as compared to last year

 

[anastasia grey113]

yeah, not that easy but easier as compared to last year

lol yh
it was a very different one
i mean no loads organic structures to draw
no NMR spectrum of a structure given
and 3 ligands of each kind? this is the first time this came up

 

[Error Syntax]

lol yh
it was a very different one
i mean no loads organic structures to draw
no NMR spectrum of a structure given
and 3 ligands of each kind? this is the first time this came up

actually the 3 ligands came in march and feb thats the only reason i knew how to make that stucture.

 

[anastasia grey113]

actually the 3 ligands came in march and feb thats the only reason i knew how to make that stucture.

wait
march/feb 2018?

 

[Error Syntax]

wait
march/feb 2018?

No, march 2016, the question about a cobalt surrounded by three water and 3 chlorine ligands.

 

[Zaki ali asghar]

btw that q about solubility of hydroxides or sulfates comes literally in every paper lol

 

[haithsoul]

btw that q about solubility of hydroxides or sulfates comes literally in every paper lol

lol cash in 4 marks

 

[Error Syntax]

btw that q about solubility of hydroxides or sulfates comes literally in every paper lol

yeah thats a pet question of examiners.

 

[haithsoul]

yeah thats a pet question of examiners.

dude for second question first part on how you will monitor the reaction progress what did you write? i wrote about the colour changing as reaction progresses

 

[Error Syntax]

same

dude for second question first part on how you will monitor the reaction progress what did you write? i wrote about the colour changing as reaction progresses

 

[abbas haider]

wait there were 3 double bonds
so werent v supposed to have 8 isomers?

No ...On one double bond 2 hydrogens were attached...

 

[Zaki ali asghar]

for those who gave AS last year, what are your threshold predictions for an A*?

 

[Tauqir_hamed]

What did u guys write about the product formed at the anode, cathode table...
Also, any predictions for the final threshold. Do u think it will be above 205 ? Provided p33 and p12 are typical exam papers

 

[anastasia grey113]

for those who gave AS last year, what are your threshold predictions for an A*?

should hit 190 i think
somewhere between 189 and 194
wut do u think?

 

[Tauqir_hamed]

I am a bit worried coz p2 was very easy and while p42 wasnt certainly easy for me, i have heard people from my school saying that the paper was quite simple. How have been the responses towards p42 from your school ?

should hit 190 i think
somewhere between 189 and 194
wut do u think?

 

[anastasia grey113]

I am a bit worried coz p2 was very easy and while p42 wasnt certainly easy for me, i have heard people from my school saying that the paper was quite simple. How have been the responses towards p42 from your school ?

idk man it wasnt THAT easy
i mean many ppl ive asked did find it difficult
even m losing 5 marks already so idk
it should be 60...or 65 max n thaz it