- Messages
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Use trial and error method.Omg, wth is this? -_-
Correct answer is D.
Yes.oxidant is the one that gets reduced itself right?
Ethanenitrile and hydrochloric acid you would get ethanoic acid and ammonium chloride.Why is it A? :S ethane nitrile hydrolysis will make propanoic acid not ethanoic :s
Here :28: why A is wrong? if I flip one of the cyclohexenes I think we can get both A nd B :?
29: can somebody make me the isomers.? ans is D :s
There are three double bonds. Each can have Cis or trans. Here are the possibilities:http://maxpapers.com/wp-content/uploads/2012/11/9701_w14_qp_13.pdf
Q25
Ans is C but I got only 6 isomers. Can somebody tell me which ones am I missing?
Question 22:
After polymerising the alkenes they become saturated and so they will not undergo reactions such as hydration and oxidation. Therefore, the answer is C.
Question 27:
Options A and B are incorrect because they do not have CH2CO2CH3 parts in their compounds.
Option D is also incorrect because the left side of the compound shows a carbon atom combined to two other carbon atoms, thus unable to form a double bond with O and a single bond with H which represents an aldehyde group.
Thanks i do understand 27 and 29 now but can you please explain 22 a bit more? thanks againQuestion 29:
With the addition of cold dilute KMnO4, two alcohol groups will be added to the carbon-carbon double bond which will in turn form a single bond, hence creating 2 new chiral carbons.
The addition of hot concentrated KMnO4 will oxidise the secondary alcohol group on the left to a ketone, which causes that carbon atom to no longer be chiral.
A - polymerizing will form an alkane. Hydrolyzing alkanes will give CO2 and H2O. so A is wrongThanks i do understand 27 and 29 now but can you please explain 22 a bit more? thanks again
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