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What is the trend in reducing ability of hydrogen halides? How does sodium halide react with concentrated sulfuric acid? Which gas produces misty fumes? All this and more covered in this comprehensive lesson with questions and answers! This is a Year 12 A level lesson for Edexcel International Unit 2 – WCH12, but it can also be used for all UK exam boards. All the slides in this lesson are fully animated and include answers to every mini plenary question and exam question. The breakdown of the slides (which are best opened on Microsoft PowerPoint) is as follows:

Slide 1 - Title and 5-minute starter. The starter is a grid of four questions entitled ‘last week, last lesson, today’s learning and future learning’. Use this generic slide for all of your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – Diagram showing electronic configurations of the halide ions from fluoride to bromide
Slides 4 – 6: link between ionic radius and reducing ability is drawn here. Print slides 5 – 6 for students
Slide 7 – Mini whiteboard (MWB) question: students asked to write a half equation that shows bromide acting as a reducing agent
Slides 8 – 9: Concentrated sulfuric acid, and its ability to act both as an acid and an oxidising agent
Slides 10 – 12: Observations, observable products and equations for the reactions of sodium chloride through to iodide with concentrated sulfuric acid
Slide 13 - learning pit-stop to check students’ learning. A series of questions of increasing difficulty, with the stretch and challenge (S+C) being the hardest. Answers animate onto the screen when you click
Slides 14 – 20: Exam questions with mark scheme answers (included with the purchase of this resource)

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