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Warning: Examkrackers practice test #1H

Discussion in 'MCAT Discussions' started by Decicco, May 17, 2008.

  1. Decicco

    Decicco 10+ Year Member

    Jun 4, 2007
    This exam is FULL of mistakes and I don't recommend taking it.
    Some examples:
    #43 says that the best lewis structure for HPO4 2- gives oxygen 10 valence electrons
    #124 says that it provides an equation, when it doesn't
    #132 gives answer choices that belong to a different question

    Anyone else found problems with this exam?
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  3. BloodySurgeon

    BloodySurgeon Moderator Emeritus Lifetime Donor Classifieds Approved 10+ Year Member

    Nov 19, 2006
    hSDN Member
    hSDN Alumni
    1g (the newer version) removes most if not all the mistakes. However, the other ones do have 1-2 mistakes here and there.
  4. Decicco

    Decicco 10+ Year Member

    Jun 4, 2007
  5. Master Deep

    Master Deep 5+ Year Member

    May 16, 2008
    Thanks for the heads up. I got the 1H exam with the complete study kit when I ordered it off amazon last week. So far there stuff seems pretty good. I want to get through as much as I can before I start my princeton course on 6/17.
  6. Hah - i'm looking at #43 right now. Its funny - the answer explanation says "D is nonsense, since it has 10 electrons on an oxygen". Yet, the answer they chose, C, has 10 electrons on TWO oxygens!

    Absolutely ridiculous - EK should be ashamed.
  7. schismal

    schismal 5+ Year Member

    Mar 12, 2008
    The EK books, although good, have a surprising amount of errors. I'm glad that I skipped their full practice test and went with the AAMC exams for the last week before my MCAT.
  8. futuredoctor10

    futuredoctor10 10+ Year Member

    Jan 25, 2007
    Cool. I got the 1H exam with the EK Complete Study Package, but knew I likely wouldn't take it (because I have plenty of Kaplan FLs [11] and AAMCs [3-10] to complete first)!

    Now this just made everything final!
  9. Asim89


    Mar 6, 2011
    There are some technical errors as well. Question 88 is repeated twice more. But the numbering gets back to normal after the VR section ends.
  10. ridethecliche

    ridethecliche Meep Meep Meep 7+ Year Member

    Feb 2, 2011
    Tied to a library chair
  11. Smiths11

    Smiths11 5+ Year Member

    Jun 7, 2011
    Does anyone know the correct answer to #43? I think it's B but I'm not 100% sure. Thanks!
  12. englishtablet


    Jul 17, 2011
    Amazon Jungle
    neither, i think it is C minus the double bond on both (only two of the oxygens) the oxygens. Then only the overall charge would be -2.
  13. Suluki


    Aug 18, 2012
    I am so thankful you posted this. I was staring at Q43 and was like what the heck...

    I think the answer should be B (provided you put square brackets around it with a -2 in the upper right). In this structure, all the atoms (incl P) would have a formal charge of zero.

    But I like the look of A better... The P is a fairly large molecule and I doubt it would want to make that many double bonds... If A is correct, P would have a formal charge of -3...

    What does everyone else think for Q43?

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