Thefire521 SG Ah thanks...what abt 4 part d i and ii? any clue of the answers?voltmeter 5.5 is 5 * 1.1 (cos there are 5 sets of the rods)part ii voltage decrease due to equilibrium shifting
Thefire521 SG Quite sian on this paper alr. The answers should be straightforward. Looking forward to math p2.
UltimaOnline SG Quite sian on this paper alr. The answers should be straightforward. Looking forward to math p2. You teach both Chem and Math? Any other subjects?
Thefire521 SG You teach both Chem and Math? Any other subjects?I thought should be quite obvious i am a student hahahawhere got tutor go for so many a level exam one haha
Thomas00 SG I thought should be quite obvious i am a student hahahawhere got tutor go for so many a level exam one hahaWow a very smart student!
UltimaOnline SG I thought should be quite obvious i am a student hahahawhere got tutor go for so many a level exam one haha
Thefire521 SG Wow a very smart student!can answer simple learning outcomes you say very smart alr hahaif can do h3 pharm then maybe
James Pek SG last question haha why is the condition for chlorine to react with phenol Cl2 in Ccl4 and not Cl2(aq) for question 5? Saw afew on reddit saying Chlorine in CCl4
Thefire521 SG last question haha why is the condition for chlorine to react with phenol Cl2 in Ccl4 and not Cl2(aq) for question 5? Saw afew on reddit saying Chlorine in CCl4 Haha james do you think cl2aq should be accepted?
Aaaaasd SG Hi, if for question 2a, my colours are stated wrongly (it was correct at first but i went to cancel it.......) but i included all the explanations like oxidising strength equations and e cell values, how many marks will be deducted? :(
ArJoe SG Haha james do you think cl2aq should be accepted? Isnt cl2 aq the answer???? Just like br2 aq?
James Pek SG Haha james do you think cl2aq should be accepted? I'm not sure either but my school(JJC) taught us Cl2(aq) also allows trisub for phenol, not sure whether if it's accepted tho
Thefire521 SG I'm not sure either but my school(JJC) taught us Cl2(aq) also allows trisub for phenol, not sure whether if it's accepted thothen trust yourself haha!
ArJoe SG Hi, if for question 2a, my colours are stated wrongly (it was correct at first but i went to cancel it.......) but i included all the explanations like oxidising strength equations and e cell values, how many marks will be deducted? :( 1st one brown solution, second one reddish brown, 3rd one brown?
Thefire521 SG Hi, if for question 2a, my colours are stated wrongly (it was correct at first but i went to cancel it.......) but i included all the explanations like oxidising strength equations and e cell values, how many marks will be deducted? :( The colours were a key criteria of the question, so i would think they allocate one mark each for each colour.
Thefire521 SG 1st one brown solution, second one reddish brown, 3rd one brown?Bromine aqueous is not reddish brown. It should be orange/yellow3rd one contains aqueous iodine, so should be pale yellow, though brown might be possible
ArJoe SG Bromine aqueous is not reddish brown. It should be orange/yellow3rd one contains aqueous iodine, so should be pale yellow I think our school teaches us aqueous bromine as reddish brown, and aqueous iodine as brown.... so all the reactions and calculations only worth 1 mark??????
Thefire521 SG I think our school teaches us aqueous bromine as reddish brown, and aqueous iodine as brown.... so all the reactions and calculations only worth 1 mark??????bromine is only reddish brown in 1). non-polar solvents2). liquid It should be half half for colours vs explanation
zenthyl SG Lol the qn didn't specify mono or tri-substituted phenol so both should be accepted la haha they won't be so stingy with the marks the second and third one how to displace. Both halogens are less reactive than the halide what. so colour remains unchanged for the last two.
