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Recent content by yousef
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Chemistry: Post your doubts here!
Why we dont count the two blue ones > they are tertiary? -
Chemistry: Post your doubts here!
could someone help me with may june 2014 paper varient 23 , question 1 b(iii) http://www.gceguide.com/search/label/AS%20%26%20A%20Level%20%3A%20Chemistry%20%289701%29 -
Chemistry: Post your doubts here!
How to find the structure similar to F and draw structural isomer in latest paper? -
Chemistry: Post your doubts here!
Thanks man for your effort :);) Got it :) -
Chemistry: Post your doubts here!
Sorry , but i am still not able to understand :( -
Chemistry: Post your doubts here!
Whats order with respect to { H+} Marking scheme Answer is First order .. .. .. Question is from November 2011 , type 41 -
Physics: Post your doubts here!
If so , then why they used mass of photon as mass of meson/2 ? -
Physics: Post your doubts here!
Hi , mass of gamma to be used is mass of electron , but how ? it should be as i guess 2* mass of electron as there are 2 moles -
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Mathematics: Post your doubts here!
Hello every one , help needed in two question ,, question 9 http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s10_qp_31.pdf question 10 i & iv http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s12_qp_31.pdf -
Chemistry: Post your doubts here!
When add NaOH with compound with has C=C bond &carboxilic acid ( eg. propenoic acid ).. will it be addition / condensation and do we consider NaOH as functional group ?? -
Chemistry: Post your doubts here!
No bro , every year the values change ! so you get new data booklet every year , and make sure you use the value in the booklet you are given on the day of exam -
Chemistry: Post your doubts here!
Paper5- mj2009 q 1(e) ..& if someone can even do second question graph and share it with us that will be much appreciated.