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xHazeMx said:explanation
C, as usual, by eliminating all options. And because carbon atom gets a +ve charge, so it gets electron deficient - so we may call it an electrophile.
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xHazeMx said:explanation
i got the same answer but just was making sure. more questions are coming soon.Anonymousx3 said:xHazeMx said:explanation
The intermediate is a carbocation. It has a positive charge so it's capable of accepting a lone pair of electrons.
It's an electrophile.
xHazeMx said:i got the same answer but just was making sure. more questions are coming soon.Anonymousx3 said:xHazeMx said:explanation
The intermediate is a carbocation. It has a positive charge so it's capable of accepting a lone pair of electrons.
It's an electrophile.
We already answered and explained it. See the previous posts.Anonymousx3 said:Why can't it be C?
Anonymousx3 said:Why can't it be D?
Ah, thanks.xHazeMx said:sure zishi !! .. no problem u can answer the questions after u r done. u r such a bless to xtremepapers
Al2O3 has an oxide layer which prevents any further reaction so it's CAnonymousx3 said:Why can't it be D?
sniper7137 said:Hey. Can anyone help me with Questions 5 and 34 of May June 2007 Paper 1?
Zishi said:sniper7137 said:Hey. Can anyone help me with Questions 5 and 34 of May June 2007 Paper 1?
Q5 : B
It's because we're taking hydrogen bonds between ammonia molecules to convert it into a gas.
Q34: C, i.e 2 and 3 are correct.1 is wrong, because when molten, ionic chlorides do conduct electricity.
sniper7137 said:Hey. Can anyone help me with Questions 5 and 34 of May June 2007 Paper 1?
Saturation said:Thanks for clearing up the previous doubt! Ok, I remember this qs was discussed before, but anyways:
http://www.xtremepapers.me/CIE/Internat ... 2_qp_1.pdf
Number 11. My textbook says that the rate of reaction always starts from the highest, and then as the reactants are used up and all, it decreases with time! So, in that case shouldn't the answer be D?
xHazeMx said:what could be the answer and why?
xHazeMx said:yes u r right it is B , but how?
u mean the hydrogen atoms bonded to the O atom are the number of hydrogen atoms replaced? and does it work with aldehydes, acids and esters too ?Zishi said:xHazeMx said:yes u r right it is B , but how?
Because deuterium atoms can only replace hydrogen atoms in alcohols. It's a fact, so learn it.
xHazeMx said:u mean the hydrogen atoms bonded to the O atom are the number of hydrogen atoms replaced? and does it work with aldehydes, acids and esters too ?Zishi said:xHazeMx said:yes u r right it is B , but how?
Because deuterium atoms can only replace hydrogen atoms in alcohols. It's a fact, so learn it.
sakibfaiyaz said:What exactly do they mean by NEIGHBOURS? shouldn't it in a normal way mean any atom next to it (up, down, left and right)?....In that cause B shouldn't be the answer (as Boron's second IE is greater than that of aluminium)
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