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  1. S

    Errors carried forward ?

    For chemistry especially moles, yes there is ecf. Whether your first value is incorrect ecf is awarded but beware, in one marking scheme it said that accept ecf if answer of value is within >0.5 range. The actual value was 0.32.
  2. S

    Chemistry: Post your doubts here!

    You must be talking about Volatility. The weaker the inter-molecular forces are, the more volatile the compound is. Alkanes are generally volatile. This came in an MCQ.
  3. S

    Chemistry: Post your doubts here!

    ^the guy answered it correct. Palladium and platinum both are used in catalytic converters.
  4. S

    Chemistry: Post your doubts here!

    X-axis---> Isotope mass. Y-axis---> % by mass. BTW its always given in paper 2. You just need to know how to calculate relative atomic mass. You don't even need to know the working of Mass spectrometer. :)
  5. S

    Maths A Level..Possible by Self Study? :/ Need Help!!

    Join a academy I guess cause in the end, when you solve past papers and stuff you will always need help from a teacher for an explanation.
  6. S

    Chemistry: Post your doubts here!

    The thing is people are saying that we don't have to study that H2 or the fact that they do reduce carbonyl compounds. Look at my pic, the examiners themselves have stated they do so!
  7. S

    Chemistry: Post your doubts here!

    Corrrect! Ketones----> Secondary Alcohol (Reduction) Aldeyhydes---> Primary Alcohol (Reduction)
  8. S

    Chemistry: Post your doubts here!

    M/J 09 Variant 21. Read this part. The examiners are imposing the fact H2 reduces ketones.
  9. S

    Chemistry: Post your doubts here!

    There is nothing obscene or foul in my 'language'. H2 reduces cabonyl compounds. Check my next post.
  10. S

    Chemistry: Post your doubts here!

    R Reduction of carbonyl compounds by H2
  11. S

    Malware Found!

    Lol I didn't care to check if there was another thread. Panicked so guessed the best option was to create a thread :p
  12. S

    Malware Found!

    Thanks a bunch! :)
  13. S

    Hello. You seem like a nice dude. -.-'

    Hello. You seem like a nice dude. -.-'
  14. S

    http://www.xtremepapers.com/community/threads/malware-found.15378/

    http://www.xtremepapers.com/community/threads/malware-found.15378/
  15. S

    Hey bro since your the only one keen enough to reply, take a look at this...

    Hey bro since your the only one keen enough to reply, take a look at this http://www.xtremepapers.com/community/threads/malware-found.15378/
  16. S

    Malware Found!

    I cant access the papers section. Admins please do something about it ASAP! Thankyou =)
  17. S

    Chemistry: Post your doubts here!

    Actually in our class we have very well studied about H2 and its reducing ability. The fact is CIE are too buzzed to even correct the marking scheme, God knows whats up with them.
  18. S

    Chemistry: Post your doubts here!

    Get your facts straight. They are used to reduce them!
  19. S

    Chemistry: Post your doubts here!

    Three reducing agents in our course. NaBH4, sodium aluminium hydride and H2. All of these reduce carbonyl compounds!
  20. S

    Hey bro, I need to change my nick. How do I do it?

    Hey bro, I need to change my nick. How do I do it?
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