I drew the correct molecule. Why was I scored as incorrect?

Document created by Vishal Sharma on Jan 12, 2017Last modified by Vishal Sharma on Jan 13, 2017
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The molecule drawing module grades connections. A very common error is to draw overlapping lines, expecting the module to know that there should be a carbon atom in the middle. Since sometimes lines overlap legitimately without the intention of adding a carbon atom at the intersection, the system is unable to guess that a carbon atom should be placed at the overlap.

If that doesn't fix your problem, check the help articles referenced in Drawing Molecules. If you still think the system is doing something wrong, contact technical support.