Qualification > Sciences
ALL CIE CHEMISTRY DOUBTS HERE !!
HUSH1994:
MJ 2006 Paper 1 Q25 & 28 please
elemis:
--- Quote from: ~~!$!HUSH!$!~~ on April 14, 2011, 06:04:02 am ---Thanks man i got it,sorry i meant Q2 not 3,3 is too easy
--- End quote ---
The isotopes of Cl are 35 and 37.
Hence, you can have :
(35-37)+
(37-37)+
(35-35)+
Thus, only three.
elemis:
--- Quote from: ~~!$!HUSH!$!~~ on April 14, 2011, 07:19:32 am ---MJ 2006 Paper 1 Q25 & 28 please
--- End quote ---
Question 25
Conisder the fact that the C-F bond is harder to break than a C-Cl bond.
Now do it for yourself.
Question 28
Think about the reaction between 2,4-Dinitrophenylhydrazine and carbonyl compounds.
HUSH1994:
Thanks man,i really appreciate your help +rep,and By the way are you doing any AS/A2 exams?
elemis:
--- Quote from: ~~!$!HUSH!$!~~ on April 14, 2011, 07:44:41 am ---Thanks man,i really appreciate your help +rep,and By the way are you doing any AS/A2 exams?
--- End quote ---
Yeah, I'm answering May/June of this year.
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