Question 24
Question 24 of 40
Question image for Q24
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
6. Chemical reactions
6.2. Rate of reaction

Describe collision theory in terms of: (a) number of particles per unit volume (b) frequency of collisions between particles (c) kinetic energy of particles (d) activation energy, E_a

7. Acids, bases and salts
7.1. The characteristic properties...

State that a neutralisation reaction occurs between an acid and a base

11. Organic chemistry
11.4. Alkanes

State that in a substitution reaction one atom or group of atoms is replaced by another atom or group of atoms