Question 1
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Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
4. States of matter
4.1. The gaseous state: ideal and r...

explain the origin of pressure in a gas in terms of collisions between gas molecules and the wall of the container

1. Atomic structure
1.3. Electrons, energy levels and a...

describe the number of orbitals making up s, p and d sub-shells, and the number of electrons that can fill s, p and d sub-shells