PLEASE help me with OCHEM on practice DAT

[Chrono]

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Could someone who has the 2009 ADA printed sample test please post or PM me?

I need help on a bunch of questions and have no one to ask for help.

these are the ochem q's I need help with:


90. Answer is D, which has 6 carbons, but product has 7 carbons, how is this possible??

91. I don't get this...please explain why the answer is correct

92. I don't get this...please explain why the answer is correct

94. I don't get this...please explain why the answer is correct

97. This confused me

99. I don't get this...please explain why the answer is correct

100. I don't get this...please explain why the answer is correct


I can take and post pics of all the questions but thought I'd try this first.

Would REALLY be thankful for any help cause I don't know who else to ask since I graduated.


Thanks,

- Chrono

 

[Tunaman]

Could someone who has the 2009 ADA printed sample test please post or PM me?

I need help on a bunch of questions and have no one to ask for help.

these are the ochem q's I need help with:


90. Answer is D, which has 6 carbons, but product has 7 carbons, how is this possible??

91. I don't get this...please explain why the answer is correct

92. I don't get this...please explain why the answer is correct

94. I don't get this...please explain why the answer is correct

97. This confused me

99. I don't get this...please explain why the answer is correct

100. I don't get this...please explain why the answer is correct


I can take and post pics of all the questions but thought I'd try this first.

Would REALLY be thankful for any help cause I don't know who else to ask since I graduated.


Thanks,

- Chrono

These are pretty important fundamental questions. Seems you need a stronger foundation before tackling the 09 DAT. #90 is an ozonylsys followed by reduction, #91 separation techniques, #92 hydrolysis, #94 is asking for the hybridization on the nitrile, #97 count the carbons on both molecules. Even if I tried explaining this to you, you might not understand it, open up an Orgo book or kaplan blue book to understand how the reagents behave in each reaction. Unfortunately, there are no shortcuts to understanding these key concepts.

 

[The Prologue]

These are pretty important fundamental questions. Seems you need a stronger foundation before tackling the 09 DAT. #90 is an ozonylsys followed by reduction, #91 separation techniques, #92 hydrolysis, #94 is asking for the hybridization on the nitrile, #97 count the carbons on both molecules. Even if I tried explaining this to you, you might not understand it, open up an Orgo book or kaplan blue book to understand how the reagents behave in each reaction. Unfortunately, there are no shortcuts to understanding these key concepts.

Chads videos could help him out a bit. Google him.

 

[Tunaman]

Chads videos could help him out a bit. Google him.

Perhaps, these key reactions are almost always seen on the test, not knowing the mechanisms and what products are formed is like walking into the DAT blindfolded.