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paper 12 chemistry ...

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Were these all organic questions ?
from Q.21 to Q.30 and Q.40 and another question of free radicle substitution in last 10 question ?

Total of 12 Organic question?
please let me know
 
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Man can u please tell me what were questions 25,26, and 28 ive forgotten..29 was C and 30 also forgotten ;D
26 was that a compound x is burned then oxidized then reacted with 2,4 DNPH giving -ve result and reacted with ethanol no ester formed options were
A carboxylic acid
B ketone
C alcohol
D alkane
i dont remember 25 or 28
can you tell me 29th one if you remember??
 
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whtz da ans of tht yield of nitrogen one ??? enthalpy chnge of reaction is -92kj.....i go with Increasing the pressure..m i ryt?
 
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26 was that a compound x is burned then oxidized then reacted with 2,4 DNPH giving -ve result and reacted with ethanol no ester formed options were
A carboxylic acid
B ketone
C alcohol
D alkane
i dont remember 25 or 28
can you tell me 29th one if you remember??
The question was that which of these reagent do not react with _______ ( it was some chemicals word) _______ contains a ketone and an ester
A.Hcl (aqueous)
B.2,4 DNPH
C.Na(solid)
D. Potassium manganate
I might have mixed up the B and D options caz they were obviously in correct. But im sure C was correct :D
 
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The question was that which of these reagent do not react with _______ ( it was some chemicals word) _______ contains a ketone and an ester
A.Hcl (aqueous)
B.2,4 DNPH
C.Na(solid)
D. Potassium manganate
I might have mixed up the B and D options caz they were obviously in correct. But im sure C was correct :D
C
 
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Arreh shala!! tui eikhaneh!!!?? Amakeh chinsish??! Koyta bhool paisosh ei porjonto???!
 
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The one with the bracket was a transition state. SN2 mechanisms don't produce transition states. So the answer was the organic intermediate A.
 
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They do. The nucleophile goes on to form a 5th bond with the carbon atom under attack. That is when a transition state is formed. Transition states are displayed within brackets as far as I know...
 
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