I think its AlCl3 because Al2Cl6 is formed only in very high temperatures, but they may accept bothppl 4 Al and Cl did you'll write AlCl3 or Al2Cl6? I wrote AlCl3
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I think its AlCl3 because Al2Cl6 is formed only in very high temperatures, but they may accept bothppl 4 Al and Cl did you'll write AlCl3 or Al2Cl6? I wrote AlCl3
i wrote solvents...??Wat do u mean appear in planning paper??
Commercial use was for the ester PERFUMES ,FOOD FLAVOURING
awh damnit.. that means i lost the pressure and temperature marks -_- ... goodjob cie, tricking people!spot on
guys i drew the same but dint show OOH coz i thought it was cis coz of H and trans coz of H so i dint write -OOH.........?I hadn't notice it was SKELETAL formula that was asked for the cis-trans isomer(silly mistake I know) but I saw it like when 5 mins was left, and I hastily drew these. Do you think I'll get my marks?
Same Here..Organic sucked big tym:'(
The rest was OK!I expected a question for electrolysis this tym
Yup I got that toowhat was the emperical formula? Somehow I ended up with C6H8O7
good, cause I recalculated right now and it has to be C6H8O7 !Yup I got that too
60..what's the total mark for paper 2?
ppl wats d element dat burns with a coloured flame . ppr ws a bit tough
what was the empirical formula in q3??
They asked which element burns in colored flame in Chlorine. Only Sulfur burns in with a colored flame in Chlorine.
Sulfur burns with a blue flame.
Cheers
P5...I wrote as a food preservative:S
in many text books and on wikipedia it says sodium burns in chorine in a yellow flame.....They asked which element burns in colored flame in Chlorine. Only Sulfur burns in with a colored flame in Chlorine.Sulfur burns with a blue flame.Cheers
Q3
I don't remember the exact structure of the compound but
to the left, an ester with the tail -CO2H groups were formed
to the right, an ester with the middle -OH group was formed
straight down, an alkene was formed with the elimination of the middle -OH group and a hydrogen from one of the neighboring C's
alkene + cool, dilute KMnO4 gave you a product with the double bond removed and a diol
alkene + hot, conc. KMnO4 gives you something i'm not sure of!
there was no chlorine mentioned in the question.
only which element burns with a colored flame, and the possible answers were. sodium (yellow), phosphorous (blue), sulfur (yellow)
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