5-mark practice questions — OCR A-Level Chemistry B: Salters (H433)
124 questions · chemistry · View as Markdown
How to answer
5-mark questions typically award marks for structured argument: two ideas + linked because + specific example + conclusion.
Sample questions
- Dmitri Mendeleev arranged elements into a periodic table in 1869. The modern periodic table is arranged in order of atom…
- Explain why the majority of plastics used in everyday products are difficult to dispose of responsibly, and describe one…
- A doctor is explaining to a medical student how the human body is made from a small number of chemical elements. The doc…
- A fashion designer is developing a new range of clothing and wants to use natural dyes instead of synthetic dyes. Explai…
- A teacher asks students to compare the most abundant elements found in the human body with those found in the universe a…
- Propan-1-ol and 1-chloropropane are two organic compounds. Explain how a chemist could distinguish between propan-1-ol a…
- Explain why the oceans contain dissolved salts and describe how the concentration of these dissolved salts affects marin…
- A company extracts iodine from seaweed on an industrial scale. After harvesting the seaweed, it is burned to produce ash…