IB MYP Chemistry Mock Test 4 – 2026 Edition

IB MYP Chemistry Mock Test 4 – April/May 2026 Exam

IB MYP Chemistry Mock Test 4: Prepare for the MYP exams with subject-specific Prediction questions, model answers. All topics covered.

Prepared by MYP teachers: Access our IB MYP Chemistry Mock Test 4 Mock with model answer. Students: Practice with exam-style papers for MYP Exam

Question (6 marks)

Lead is a very useful metal that has been in use from early times. For a metal, lead has a low melting point and can be easily moulded. Lead can be shaped but does not react with air. These properties make lead suitable for a variety of uses. Lead was used to make pipes that made it possible to carry water as far back as Roman times. In fact this widespread use of lead gave us the word “plumbing” which comes from the Latin word for lead, plumbum. History has shown, however, that lead and lead compounds are toxic.

a (2 marks)

Use the periodic table to state the group and period of lead.

Group:

Period:

b (1 mark)

Select a property of lead at room temperature and pressure.

c (1 mark)

State the property of lead that allows scientists to study ancient Roman pipes.

d (2 marks)

Lead has four stable isotopes. Determine the number of protons and neutrons in ²⁰⁸Pb.

Protons:

Neutrons:

Hint: The atomic number of lead (Pb) is 82.

▶️ Show Answers & Explanations

7a Answers

Correct Answer:

Group: 14 (or Group 4 in old notation)
Period: 6

Explanation: Lead (Pb) is in the carbon group (Group 14) and the sixth period of the periodic table.

7b Answers

Correct Answer: Good conductivity

Explanation: As a metal, lead conducts electricity well. While it doesn’t react quickly with oxygen, this isn’t a room temperature property.

7c Answers

Correct Answer: Low reactivity (with air/water)

Explanation: Lead’s resistance to corrosion allows ancient pipes to survive. This chemical stability prevents reaction with air/water over centuries.

7d Answers