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  1. A

    HOW WAS CHEMISTRY PAPER 22 ?

    See if we were supposed to write the color change, then we had to mention what compound would be made too. The compound wolud be weird, as the carbon hydrogen bonds are broken. That's not present anywhere in our syllabus. Don't worry, we'll get our mark for no reaction.:)
  2. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Only some particular forms of KMnO4 oxidise a ketone, and that's not specified in our syllabus. All we were supposed to do was to find if any alkene group was present. There wasn't any present, so there was no reaction. Infact, the last 2 were no reactions.
  3. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Every mark matters. But I guess I lost my senses somewhere:p. Anyways, sorry people. Hope we all get As InshaAllah. Peace.:)
  4. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Look, I got your point. But what puzzled me was that it was written HO, as u still remember. If it was alcohol, they could've simply written OH.
  5. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Were they seven or 6? And please, CIE examiners that not that lenient that they'll give u straight marks for just writing a letter and a color change.
  6. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Okay bro. It was an alcohol with a hydrogen having a bond with C, as well as oxygen. Maybe our chemistry books need a change now as we have new philosophers here.
  7. A

    HOW WAS CHEMISTRY PAPER 22 ?

    See, as I said it before if there's a hydrogen between a C and an O, that's impossible for an alcohol. And it was important as then you had to mention the colour changes in the table :p
  8. A

    HOW WAS CHEMISTRY PAPER 22 ?

    I stared at that compound for 5 minutes.:D It was CHO, everybody's accepting that there was an HO in the end. That's got to be an aldehyde.
  9. A

    HOW WAS CHEMISTRY PAPER 22 ?

    It it was (CH3)2CHO, then the last carbon has only three bonds attached if u consider it to be an alcohol .:p Secondly, structural formula always matters. If u show me any compound from anywhere which is an alcohol and has a CHO in the end, I'll accept that I'm wrong then.
  10. A

    HOW WAS CHEMISTRY PAPER 22 ?

    6.92 something, which rounded off to 7.
  11. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Yes, u see that it was CHO. It means that H is before O. That's impossible for an alcohol as a hydrogen can only form one bond (i.e. either with carbon or with oxygen).It can't form a bond with both of them at the same time. What I remember is that it was (CH3)3CCHO.
  12. A

    HOW WAS CHEMISTRY PAPER 22 ?

    It wasn't H2SO4, it was a calcium compound, as you're getting a Ca in your products.
  13. A

    HOW WAS CHEMISTRY PAPER 22 ?

    See I have never seen a compound anywhere which has a CHO in the end and is an alcohol. A CHO in the end always means that the carbon has a double bond with oxygen, indicating that it's an aldehyde. It it were alcohol, it would've been OH then. Btw do you remember the exact formula of the compound?
  14. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Thanks God, at least someone's with me. Do u remember the first compound? Was it (CH3)3CCHO? It was an aldehyde right? (which was being oxidized to a carboxylic acid)
  15. A

    HOW WAS CHEMISTRY PAPER 22 ?

    Hey switch, did u get orange to green for the first reaction?
  16. A

    HOW WAS CHEMISTRY PAPER 22 ?

    How many "no reactions" were present and which were they among the 6? They were 6 in all right? How many color changes did u guys get? Is there anyone who remembers the first organic reaction?
  17. A

    HOW WAS CHEMISTRY PAPER 22 ?

    I also wrote orange to green for A as it was being oxidized from an aldehyde to an acid.
  18. A

    HOW WAS CHEMISTRY PAPER 22 ?

    See u multiplied it too, plus you wrote it with the power. I think we were only supposed to put it up with the power. :rolleyes:
  19. A

    HOW WAS CHEMISTRY PAPER 22 ?

    That 2 will go with the power bro. We weren't supposed to multiply, it simply goes with the power.
  20. A

    HOW WAS CHEMISTRY PAPER 22 ?

    See what I remember is there was CHO in the end. It wasn't an alcohol. It was probably (CH3)3CCHO then as a five bond compound would seem rather stupid to give.
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