Question 1
How many protons, neutrons and electrons are present in a neutral atom of the isotope written as ⁴⁰₂₀Ca?
Correct Answer:
20 protons, 20 neutrons, 20 electrons
Question 2
What is the ground-state electron configuration of a chromium atom (Z = 24)?
Correct Answer:
1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹
Question 3
Which statement best explains why the first ionisation energy of aluminium is lower than that of magnesium?
Correct Answer:
The outer electron removed from aluminium is in a 3p orbital, which is higher in energy than the 3s orbital of magnesium
Question 4
Which type of bonding holds the particles together in solid sodium chloride?
Correct Answer:
Ionic bonding
Question 5
According to VSEPR theory, what is the shape of a molecule of ammonia, NH₃?
Correct Answer:
Trigonal pyramidal
Question 1
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Prepare with the CAPE Chemistry Unit 1 Practice Questions - CAPE Chemistry Unit 1 (Caribbean Examinations Council, CXC) Exam practice quiz. This question bank includes 100 questions covering reaction, acid, solution, change, and equilibrium. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CAPE Chemistry Unit 1 Practice Questions - CAPE Chemistry Unit 1 (Caribbean Examinations Council, CXC) Exam

This practice set contains 100 questions from the matching question bank and focuses on reaction, acid, solution, change, and equilibrium. 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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