Chemistry: Post your doubts here!

[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

 

[Error Syntax]

the people who are saying that any p4 was easy, trust me they haven't discussed their paper thoroughly with others.

 

[Zaki ali asghar]

hope so it won't shoot above 200!

 

[Zaki ali asghar]

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

yeah i am glad we aren't discussing it thoroughly lol.

 

[Tauqir_hamed]

Anybody remembers the anode , cathode question.. what were the compounds.. one was conc MgCl2. What were the rest ??

 

[Nushad Nahue]

Does anybody remember the quantitative electrolysis question? What was the answer ?


Also, the NMR and C-13 NMR. How many peaks do you think it had?

 

[Nushad Nahue]

Anybody remembers the anode , cathode question.. what were the compounds.. one was conc MgCl2. What were the rest ??

I think aqueous CuCl2 was one of them.