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  1. D

    Chemistry: Post your doubts here!

    CH3CH2CH2OH + 4.5O2------>3CO2 + 4H2O so 0.1 mol propanol reacts with 0.45 mol of the o.5 mol oxygen provided (12dm3 oxygen is 0.5 mol) 0.05 mol of oxygen is left over as gas. 0.3 mol of CO2 is formed which is the gaseous product as H2O will be liquid at r.t.p. 0.35mol of total gases...
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    A level Biology: Post your doubts here!

    The first question states that the magnification used is 400x. Which is very low to be able to see any cell contents except the nucleus. In the second question you have "resolution" given, 200nm resolution means that anything with size smaller than 200nm will not be seen. In this case it is only...
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    Chemistry: Post your doubts here!

    d)i) E for CH,, F for CH2 while d)ii E triplet and adjacent 2H,, F doublet adjacent 1H i got d)i wrong. How is E CH and F CH2?? am i missing a concept?
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    Chemistry: Post your doubts here!

    no...
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    Chemistry: Post your doubts here!

    Can someone give me the complete answer to this question? it's 5 marks and from Oct/Nov 2014 paper 43. Thanks.. :)
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    Chemistry: Post your doubts here!

    CH3COOCH2CH(OCOCH3)COOH ????
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    A level Biology: Post your doubts here!

    Thanks a lot!!! Got it!
  8. D

    A level Biology: Post your doubts here!

    explain...? ans. C.. how is the cross sectional area increasing?
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    A level Biology: Post your doubts here!

    explain please...
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    Muhammad Ayub Alevel books for Organic Chemistry...?

    Thanks for the great links. The books are actually named "Muhammad Ayub A level chemistry" book 1 and book 2. Only available in Pakistan though.
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    Muhammad Ayub Alevel books for Organic Chemistry...?

    Few of my A* taking friends have recommended me the books to do organic chemistry from these. So i am planning to do old syllabus parts from these and new syllabus from my notes and chemguide website. Is this book good for organic chemistry in your opinion? I find the wording pretty easy but i...
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    Which Biology Book Is The Best For A'level?

    It is the same :P have you done 2016 past papers? I only found those difficult.. with this book.
  13. D

    Which Biology Book Is The Best For A'level?

    Help please ... :unsure:
  14. D

    Which Biology Book Is The Best For A'level?

    As the title says.. Which Biology book is best for A'level? Especially for new syllabus concepts. I am using Mary Jones book but i find it not covering A lot of marking scheme points stated in 2016 papers. Thanks for any help :)
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    Giving A'level composite retakes for bio/chem need help!

    It has useful resources and only the mary jones book for bio... I don't know if i should use that one again..
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    Equivalency Private Candidate Problem

    There is no problem at all atm. All you have do do is take your original certificates with you and get your equavilance made. There is only one restriction and that too for every one doing a levels that is, you can't get it made if you have given alevels with 2 years gap between for a RETAKE. I...
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    Giving A'level composite retakes for bio/chem need help!

    Hello, so i am giving retakes for bio/chem. Last year i had Cs in both and now i want to make that into A*s. I used the mary jones book for biology but i've seen that the marking schemes of new syllabus papers have things that are not mentioned in there so any book recommendations? For chem i...
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    A level. Way worse result than expected. What to do?

    Thank you for the help! :)
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    A level. Way worse result than expected. What to do?

    I agree. Retaking A levels will also put me at risk as then i wont be able to give my ALL to MCAT. I think Learning everything that is possible to come in the Entrance exams is the way to go. Perfect prep and an aim of a perfect paper inshallah.
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    A level. Way worse result than expected. What to do?

    Guys i'm so confused. So this is the situation for me right now. I do not want to do engineering in any way. I cannot afford expensive medical schools. If we take into consideration 86.7% closing merit (its been lower than this for RMC for past few years. This is where i want to get in) I have...
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