Edexcel IAL, Unit 5: Transition Metals and Organic Nitrogen Chemistry. 22-Jun-2016

Reply 180

12103763d

10

I wrote ligand exchange, coz all ligands are exchanged...

Reply 181

RizK

20

Original post by AKucukuncular

I wrote +3 because it was a salt of Fe⁺³, the Fe in bold, with the anion containing Fe itself.

Crap. I saw the question as Fe₄[Fe(CN)₆] Since the ligand has a charge of -4 I thought 4Fe would have a total charge of +4 therefore that was the oxidation state.

I don't know. Maybe I was in a hurry to get chemistry over with. :biggrin:

Reply 182

12103763d

10

Original post by RizK

Crap. I saw the question as Fe₄[Fe(CN)₆] Since the ligand has a charge of -4 I thought 4Fe would have a total charge of +4 therefore that was the oxidation state.

I don't know. Maybe I was in a hurry to get chemistry over with. :biggrin:

U miss 3 behind the complex ion

Reply 183

12103763d

10

I find that there were no nmr or IR questions ... Weren't it weird

Reply 184

Fone321

I remember there was a question about benzene and we had to reduce the ketone group to an alcohol and then add PCl5 to change it to the final product..? Was I correct?

Reply 185

Quiton

3

Asking about diamond....unexpected lol

Reply 186

majidabdul

1

What was formulaa of zwitter ion

Reply 187

Quiton

3

If you consider explanation of the benzene structure as a question haha

Original post by 12103763d

I find that there were no nmr or IR questions ... Weren't it weird

Reply 188

coollike

1

How did everyone find it? i think it was quite easy, what did u guys get for the enthalpy question? Multiple choice was surprisingly easy! Did any one get 2:5 as the ratio for the Mn042- : S2O32- ?

Reply 189

Level9

What was mass of Fe(II) and Fe(III)
i got 0.59 and 1.sth

Reply 190

AvWOW

3

Pretty good paper!
How did you guys get the AgCl question complex ion?

Reply 191

nimesh007

2

Original post by Level9

What was mass of Fe(II) and Fe(III)
i got 0.59 and 1.sth

i got 1.83 n 1.98

Reply 192

tgygt

2

Original post by coollike

How did everyone find it? i think it was quite easy, what did u guys get for the enthalpy question? Multiple choice was surprisingly easy! Did any one get 2:5 as the ratio for the Mn042- : S2O32- ?

I got 1:5

Reply 193

tgygt

2

Original post by AvWOW

Pretty good paper!
How did you guys get the AgCl question complex ion?

2 moles of free Cl- So it is complex X? forgot about the structure

Reply 194

nimesh007

2

Original post by tgygt

I got 1:5

same here

Reply 195

majidabdul

1

How do u replace OH group with CL

Reply 196

Quiton

3

Got 1:5 for ratio, by the way it is Mn04^-, NOT 2-

Original post by coollike

How did everyone find it? i think it was quite easy, what did u guys get for the enthalpy question? Multiple choice was surprisingly easy! Did any one get 2:5 as the ratio for the Mn042- : S2O32- ?