## 3D Structure Questions (JSmol)

This question type requires students to construct a 3D structures using the JSMol Model kit. There are two options for checking correctness of students responses; Structure (Smiles) and Conformer (RMSD).

With the Structure (Smiles) option selected the students 3D structure is converted to smiles and checked for correctness. You can ask questions like the following

**Construct acetophenone in the applet below?**
**Draw (R)-butan-2-ol?**
**Construct (2E, 4Z) hexa-2,4-diene?**

With the conformer option selected you can ask students to construct various conformers. Here are some examples of what you can ask.

**Construct the most stable conformation of methylcyclohexane?
Construct the anti conformer of butane?
Construct the most stable (trans)-1,4-dimethylcyclohexane conformation?**

With the conformer option an additional check of the RMSD (Root Mean Square Distance) is performed. Note that the hydrogen atoms are ignored in the RMSD calculation.

Here is a screen shot of the JSMol qtype.