National 5 Half Paper Practice Prelim C and Mark Instructions

The third half-length National 5 Chemistry paper, with all-new questions for quick, targeted exam practice.

What’s included:

• Question paper: 10 multiple-choice questions with an answer grid, plus 30 marks of written questions (40 marks in total)
• Full marking instructions: expected answers, step-by-step working for every calculation, and guidance on what to accept
• Covers Chemical changes and structure, and Nature’s chemistry
• Suggested time: 1 hour 10 minutes

Topics include how temperature affects reaction rate (the classic disappearing-cross experiment), covalent molecules and percentage composition, alkanes and combustion equations, and ethanoic acid calculations. The open-ended question asks whether two isotopes of carbon are really identical.

Instant PDF download. Print as many copies as your household needs. The questions are original, written by a practising Scottish chemistry teacher.