New spec exam style question starter on catalysts

Starter based on real exam question and real responses as an Afl style activity. I have attempted to highlight the misconceptions and mixed concepts the students exhibit when answering exam questions. Based on AQA, but would work for other boards
suggested uses:
Use as a starter: students to select which they think is the best answer (quick starter), for a longer task, they are then to decide why the other answers are less than perfect
This could be extended to be the focus of a whole lesson, if you use the question as a starter, go through the concepts and re-visit at the end of the lesson to see if the students have changed their minds.
Commentary on student answers are included.