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mistakes in barrons

Discussion in 'DAT Discussions' started by sciencegod, Dec 20, 2008.

  1. sciencegod

    sciencegod Super Member
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    i think there should be a thread with all thw mistakes in all the review books.
    i just did a practice test in the chem in the barrons book and its full of mistakes.

    which ion is isoelextronic with Ba+2?
    I wrote I. but they had equally good choice Cs. they marked it as xe whic is silly.

    mistake in q 58 in model exam 1 chem.
    how many C atoms in 4*10^-8 of C3H8?
    I wrote 1.64*10^15. they marked it as something else.

    q 62 is wrong

    q 66 wrong

    how is orientation of the bond bet the two sp2 carbons in ethene best described in relation to the orientation of pi bond.

    I think answe is perpendicular, no?
     
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  2. Sublimation

    5+ Year Member

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    I have the barrons book but i didnt bother goin through it yet. However, the last question is a bit ambiguous. The Sigma bond is parallel relative to the pi bond. Its a pretty weird question if you ask me.
     
  3. sajjy

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    Barron's is good for PAT strategies only. Otherwise it is not as useful.
     
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  4. sciencegod

    sciencegod Super Member
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    what about the Ba problem
     
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