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Aymen Ezazi:
hey all.. i am new to this forum, and doing past papers so lots of doubts coming up!!
can anyone explain me question 5 in paper 1.. why the answer is B and not D?? the hydrogen bonds are broken in methane because it is broken down to carbon and hydrogen.. not in ammonia bcoz its just changing to gas..http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s06_qp_1.pdf .. this is the link to the paper!!

Suryaw1:
Hydrogen bonds are only formed when hydrogen is bonded to very electronegative elements, such as N, O and F. In question no 5, only option B has hydrogen bonds. Therefore it also can be broken down.

NotAbod:

--- Quote from: Suryaw1 on May 28, 2013, 05:57:51 pm ---Hydrogen bonds are only formed when hydrogen is bonded to very electronegative elements, such as N, O and F. In question no 5, only option B has hydrogen bonds. Therefore it also can be broken down.

--- End quote ---
Indeed. This is correct.
Thanks for answering him :)

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