Addition Reactions of Alkenes — Interactive Lesson (Ages 14–16)

One double bond, many products: alkanes, alcohols and halogen compounds. This 21-slide interactive lesson on addition reactions of alkenes takes pupils from first ideas to exam-style explanations, with 12 self-marking activities and nothing to prepare beforehand.

Teaching Addition Reactions of Alkenes in GCSE Chemistry

Pupils explain what happens to the C=C bond during addition and learn the conditions for adding hydrogen (nickel catalyst), steam (phosphoric acid catalyst, high temperature and pressure) and halogens (room temperature). They name products such as 1,2-dibromoethane and ethanol, and connect hydrogenation to how vegetable oils become spreads.

What Pupils Will Learn

• Explain what happens to the C=C bond in an addition reaction.
• Describe the addition of hydrogen, steam and halogens to alkenes.
• State the conditions and catalysts used for each reaction.
• Name the products of addition reactions.
• Explain how hydrogenation turns vegetable oils into spreads.

What’s Included

• 21-slide interactive lesson
• 12 self-marking activities: multiple-choice questions, true-or-false checks, sorting tasks, drag-and-drop categorising and fill-in-the-gap questions
• Step-by-step teaching cards that reveal one point at a time
• A written explanation task with a model answer for self-assessment

Why Teachers Love It

• No prep — open it on an interactive whiteboard, laptop or tablet
• Instant feedback explains every answer, right or wrong
• Examples from both Nigeria and the UK make the chemistry feel real
• Works for whole-class teaching, independent study or revision

Curriculum Alignment

Supports the organic chemistry content of UK GCSE Chemistry (AQA, Edexcel and OCR) and the Nigerian Senior Secondary Chemistry curriculum (SS2–SS3), including WAEC and NECO exam preparation.

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FAQ

What year groups is this for? Years 10–11 (ages 14–16), and SS2–SS3 in Nigeria.

Is it self-marking? Yes — all 12 activities give instant feedback.

Do pupils need to log in? No. The lesson runs in any modern web browser.

Can I use it for revision? Yes. Pupils can replay it as often as they like, and the results screen shows which questions to review before a test.