9b9687073e904ae197799dc415df899f.xml

<problem display_name="Molecule Structures" max_attempts="null" rerandomize="never" showanswer="never" weight="null">
  <startouttext/>
  <p> Carbon reacts with chlorine and hydrogen to form the compound CH<sub>3</sub>Cl.</p>
  <p>Construct the structure of CH<sub>3</sub>Cl.</p>
  <endouttext/>
  <customresponse>
    <vsepr_input height="600" width="650" hidden="1" molecules="C,H,Cl,(ep)" geometries="Linear,Trigonal Planar, Tetrahedral, Trigonal Bipyramidal, Octahedral"/>
    <answer type="loncapa/python">
user_answer = chemtools.vsepr_parse_user_answer(submission[0])

    #solution
    #AX4E0
    #central atom = C
    #peripheral atoms, any placement: = Cl,H,H,H
correct_answer = chemtools.vsepr_build_correct_answer(geometry="Tetrahedral",atoms={"c0":"C","p0":"H","p1": "H", "p2":"H", "p3":"Cl"})

if chemtools.vsepr_grade(user_answer, correct_answer, convert_to_peripheral=True):
    correct = ['correct']
else:
    correct = ['incorrect']

</answer>
  </customresponse>
</problem>