Question 1
Chlorine has two natural isotopes, Cl-35 (75.0%) and Cl-37 (25.0%). What is the relative atomic mass of chlorine?
Correct Answer:
35.5
Question 2
The energy levels of hydrogen follow E_n = -RH/n^2. Which transition produces a line in the visible Balmer series?
Correct Answer:
n = 3 to n = 2
Question 3
The successive ionisation energies of an element (kJ/mol) are 738, 1451, 7733, 10540. To which group does this element belong?
Correct Answer:
Group 2
Question 4
Which is the correct ground-state electron configuration of chromium (Z = 24)?
Correct Answer:
[Ar] 3d5 4s1
Question 5
Which is the correct ground-state electron configuration of copper (Z = 29)?
Correct Answer:
[Ar] 3d10 4s1
Question 1
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Prepare with the IB Chemistry HL Practice Questions - IB Diploma Chemistry Higher Level Exam practice quiz. This question bank includes 100 questions covering bond, complex, ionisation, atom, and reaction. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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IB Chemistry HL Practice Questions - IB Diploma Chemistry Higher Level Exam

This practice set contains 100 questions from the matching question bank and focuses on bond, complex, ionisation, atom, and reaction. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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