plumiMelting point trends across periods: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 3.1.1.4 Melting point trends across periods, 2016–2025, with mark schemes and examiner’s reports where available.
All papers
All years
Q16(a)(i)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ16(a)(ii)
The whole paper ↗Loading the start of the question…
Loading the question…
Open the full PDFQ20(c)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ1(c)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFLoading the question…
Open the full PDFYour answerLoading the question…
Open the full PDFYour answerQ2(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDF
All 7 questions on Melting point trends across periods, as a list
- June 2025, Paper 1, Q16(a)(i) (2 marks): Complete the graph to show approximate melting points for P, S, Cl and Ar. [2]
- June 2025, Paper 1, Q16(a)(ii) (3 marks): Explain why silicon has a higher melting point than aluminium. Use ideas about structure and bonding in your answer. [3]
- June 2024, Paper 1, Q20(c) (6 marks): This question is about elements in the periodic table. (c)* The table shows the melting points of some of the elements in Period 3 of the periodic table. Elemen
- June 2023, Paper 3, Q1(c) (1 mark): An element that is a solid at RTP with a simple molecular lattice structure. [1]
- June 2022, AS Paper 1, Q5 (1 mark): Which element has the lowest melting point? A S B P C Cl D Ar Your answer [1]
- June 2017, AS Paper 1, Q8 (1 mark): Which element has the highest melting point? A silicon B phosphorus C sulfur D chlorine Your answer [1]
- June 2016, AS Paper 2, Q2(a) (3 marks): Phosphorus and chlorine have simple molecular structures. More information about phosphorus and chlorine is given in the table below. Molecular Element formula
Questions, mark schemes and examiner’s reports are © OCR, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? OCR A-Level Chemistry A past papers, or our free OCR-style practice pack.
The Plumi iPad app also offers exam-style questions with AI feedback on your handwritten working.